{"id":49182,"date":"2022-11-14T01:05:34","date_gmt":"2022-11-13T17:05:34","guid":{"rendered":"https:\/\/ocw.nycu.edu.tw\/?post_type=course_page&#038;p=49182"},"modified":"2026-06-30T12:56:03","modified_gmt":"2026-06-30T04:56:03","slug":"8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction","status":"publish","type":"course_page","link":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction","title":{"rendered":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"49182\" class=\"elementor elementor-49182\">\n\t\t\t\t\t\t\t\t\t<section class=\"penci-section penci-disSticky penci-structure-10 elementor-section elementor-top-section elementor-element elementor-element-16700d17 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"16700d17\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"penci-ercol-100 penci-ercol-order-1 penci-sticky-ct    elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1832f798\" data-id=\"1832f798\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4a3731c elementor-widget elementor-widget-breadcrumbs\" data-id=\"4a3731c\" data-element_type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<link rel=\"stylesheet\" href=\"https:\/\/ocw.nycu.edu.tw\/wp-content\/plugins\/elementor-pro\/assets\/css\/widget-theme-elements.min.css\"><p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/ocw.nycu.edu.tw\/\">Homepage<\/a><\/span><\/span><\/p>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"penci-section penci-disSticky penci-structure-20 elementor-section elementor-top-section elementor-element elementor-element-6ad968e6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6ad968e6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"penci-ercol-50 penci-ercol-order-1 penci-sticky-ct    elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-52987d63\" data-id=\"52987d63\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e5808cb elementor-widget elementor-widget-heading\" data-id=\"e5808cb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.13.3 - 28-05-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction\n<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7aec5b11 elementor-widget elementor-widget-video\" data-id=\"7aec5b11\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/ob1YmXBsrfs&quot;,&quot;modestbranding&quot;:&quot;yes&quot;,&quot;lazy_load&quot;:&quot;yes&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.13.3 - 28-05-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"penci-section penci-disSticky penci-structure-20 elementor-section elementor-inner-section elementor-element elementor-element-7c450277 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7c450277\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"penci-ercol-50 penci-ercol-order-1 penci-sticky-ct    elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-48607404\" data-id=\"48607404\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-652aa46c elementor-widget elementor-widget-penci-button\" data-id=\"652aa46c\" data-element_type=\"widget\" data-widget_type=\"penci-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"pcbtn-wrapper pcbtn-align-left\">\r\n\t\t\t<a class=\"pcbtn pcbtn-icon-left elementor-animation-grow\" href=\"\/?post_type=course_page&#038;p=46439\">\r\n\t\t\t\t<span class=\"pcbtn-wrapperin\">\r\n\t\t\t\t\t<span class=\"pcbtn-content\"><svg class=\"e-font-icon-svg e-fas-arrow-left\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M257.5 445.1l-22.2 22.2c-9.4 9.4-24.6 9.4-33.9 0L7 273c-9.4-9.4-9.4-24.6 0-33.9L201.4 44.7c9.4-9.4 24.6-9.4 33.9 0l22.2 22.2c9.5 9.5 9.3 25-.4 34.3L136.6 216H424c13.3 0 24 10.7 24 24v32c0 13.3-10.7 24-24 24H136.6l120.5 114.8c9.8 9.3 10 24.8.4 34.3z\"><\/path><\/svg>Back to Course Homepage<\/span>\r\n\t\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"penci-ercol-50 penci-ercol-order-2 penci-sticky-ct    elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-fc8fc3b\" data-id=\"fc8fc3b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-546b36ef elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"546b36ef\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.13.3 - 28-05-2023 *\/\n.elementor-widget-divider{--divider-border-style:none;--divider-border-width:1px;--divider-color:#0c0d0e;--divider-icon-size:20px;--divider-element-spacing:10px;--divider-pattern-height:24px;--divider-pattern-size:20px;--divider-pattern-url:none;--divider-pattern-repeat:repeat-x}.elementor-widget-divider .elementor-divider{display:flex}.elementor-widget-divider .elementor-divider__text{font-size:15px;line-height:1;max-width:95%}.elementor-widget-divider .elementor-divider__element{margin:0 var(--divider-element-spacing);flex-shrink:0}.elementor-widget-divider .elementor-icon{font-size:var(--divider-icon-size)}.elementor-widget-divider .elementor-divider-separator{display:flex;margin:0;direction:ltr}.elementor-widget-divider--view-line_icon .elementor-divider-separator,.elementor-widget-divider--view-line_text .elementor-divider-separator{align-items:center}.elementor-widget-divider--view-line_icon .elementor-divider-separator:after,.elementor-widget-divider--view-line_icon .elementor-divider-separator:before,.elementor-widget-divider--view-line_text .elementor-divider-separator:after,.elementor-widget-divider--view-line_text .elementor-divider-separator:before{display:block;content:\"\";border-bottom:0;flex-grow:1;border-top:var(--divider-border-width) var(--divider-border-style) var(--divider-color)}.elementor-widget-divider--element-align-left .elementor-divider .elementor-divider-separator>.elementor-divider__svg:first-of-type{flex-grow:0;flex-shrink:100}.elementor-widget-divider--element-align-left .elementor-divider-separator:before{content:none}.elementor-widget-divider--element-align-left .elementor-divider__element{margin-left:0}.elementor-widget-divider--element-align-right .elementor-divider .elementor-divider-separator>.elementor-divider__svg:last-of-type{flex-grow:0;flex-shrink:100}.elementor-widget-divider--element-align-right .elementor-divider-separator:after{content:none}.elementor-widget-divider--element-align-right .elementor-divider__element{margin-right:0}.elementor-widget-divider:not(.elementor-widget-divider--view-line_text):not(.elementor-widget-divider--view-line_icon) .elementor-divider-separator{border-top:var(--divider-border-width) var(--divider-border-style) var(--divider-color)}.elementor-widget-divider--separator-type-pattern{--divider-border-style:none}.elementor-widget-divider--separator-type-pattern.elementor-widget-divider--view-line .elementor-divider-separator,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:after,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:before,.elementor-widget-divider--separator-type-pattern:not([class*=elementor-widget-divider--view]) .elementor-divider-separator{width:100%;min-height:var(--divider-pattern-height);-webkit-mask-size:var(--divider-pattern-size) 100%;mask-size:var(--divider-pattern-size) 100%;-webkit-mask-repeat:var(--divider-pattern-repeat);mask-repeat:var(--divider-pattern-repeat);background-color:var(--divider-color);-webkit-mask-image:var(--divider-pattern-url);mask-image:var(--divider-pattern-url)}.elementor-widget-divider--no-spacing{--divider-pattern-size:auto}.elementor-widget-divider--bg-round{--divider-pattern-repeat:round}.rtl .elementor-widget-divider .elementor-divider__text{direction:rtl}.e-con-inner>.elementor-widget-divider,.e-con>.elementor-widget-divider{width:var(--container-widget-width,100%);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da19150 elementor-widget elementor-widget-shortcode\" data-id=\"da19150\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-121\" class=\"tablepress tablepress-id-121\">\n<thead>\n<tr class=\"row-1 odd\">\n\t<th class=\"column-1\">Week<\/th><th class=\"column-2\">Course Content<\/th><th class=\"column-3\">Course Video<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-hover\">\n<tr class=\"row-2 even\">\n\t<td class=\"column-1\">Chapter 0<\/td><td class=\"column-2\">\u7b2c\u96f6\u7ae0 \u7269\u7406\u4e2d\u7684\u6578\u5b78<br \/>\nEquations &amp; The Quadratic Formula<br \/>\nLinear Equations<br \/>\nExponents<br \/>\nTrigonal Function<br \/>\nThe Binomial Expansion<br \/>\nLogarithms<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=46454\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-3 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Complex Numbers<br \/>\nDifferential and Integral Calculus<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49009\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-4 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Taylor Expansion<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49015\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-5 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Integration<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49027\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-6 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Differential Equation<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49032\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-7 odd\">\n\t<td class=\"column-1\">Chapter 1<\/td><td class=\"column-2\">\u7b2c\u4e00\u7ae0 Physics and Measurement<br \/>\n1-0 \u8ab2\u7a0b\u6982\u8ff0<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49038\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-8 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">1-1 Standard of Length, Mass, and Time<br \/>\n1-2 Matter and Model Building<br \/>\n1-3 Dimensional Analysis<br \/>\n1-4 Conversion of Units<br \/>\n1-5 Estimates and Order-of-Magnitude Calculation<br \/>\n1-6 Significant Figures<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49044\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-9 odd\">\n\t<td class=\"column-1\">Chapter 2<\/td><td class=\"column-2\">\u7b2c\u4e8c\u7ae0 Motion in One Dimension<br \/>\n2-1 Position, Velocity, and Speed<br \/>\n2-2 Instantaneous Velocity and Speed<br \/>\n2-3 Analysis Model: The Particle Under Constant Velocity<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49050\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-10 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">2-4 Acceleration (special example)<br \/>\n2-5 Motion Diagrams<br \/>\n2-6 Motion Under Constant Acceleration<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49056\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-11 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">2-7 Freely Falling Objects<br \/>\n2-8 Kinematic Equations Derived from Calculus<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49062\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-12 even\">\n\t<td class=\"column-1\">Chapter 4<\/td><td class=\"column-2\">\u7b2c\u56db\u7ae0 Motion in Two Dimensions<br \/>\n4-0 \u8ab2\u7a0b\u6982\u8ff0 (\u7b2c\u4e09\u7ae0\u5408\u4f75\u7b2c\u56db\u7ae0\u8b1b\u8ff0)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49068\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-13 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">4-1 Position, Velocity, and Acceleration<br \/>\n4-2 Two Dimensional Motion with Constant Acceleration<br \/>\n4-3 Projectile Motion<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49074\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-14 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">4-4 Uniform Circular Motion<br \/>\n4-5 Tangential and Radial Acceleration<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49080\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-15 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">4-6 Relative Velocity and Relative Acceleration<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49086\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-16 even\">\n\t<td class=\"column-1\">Chapter 5<\/td><td class=\"column-2\">\u7b2c\u4e94\u7ae0 The Laws of Motion<br \/>\n5-1 The Concept of Force<br \/>\n5-2 Newton\u2019s First Law and Inertial Frames<br \/>\n5-3 Mass<br \/>\n5-4 Newton\u2019s Second Law<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49092\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-17 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">5-5 The Gravitation Force and Weight<br \/>\n5-6 Newton\u2019s Third Law<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49098\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-18 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">5-7 Some Applications of Newton\u2019s Laws<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49104\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-19 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">5-8 Forces of Friction<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49110\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-20 even\">\n\t<td class=\"column-1\">Chapter 6<\/td><td class=\"column-2\">\u7b2c\u516d\u7ae0 Circular Motion and Other Applications of Newton\u2019s Laws<br \/>\n6-1 Newton\u2019s Second Law for a Particle in Uniform Circular Motion<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49116\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-21 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">6-2 Nonuniform Circular Motion<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49122\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-22 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">6-3 Motion in Accelerated Frames<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49128\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-23 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">6-4 Motion in the Presence of Resistive Force (1\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49134\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-24 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">6-4 Motion in the Presence of Resistive Force (2\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49140\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-25 odd\">\n\t<td class=\"column-1\">Chapter 7<\/td><td class=\"column-2\">\u7b2c\u4e03\u7ae0  Energy of a System<br \/>\n7.1 Systems and Environments<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49146\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-26 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">7.2 Work Done by a Constant Force<br \/>\n7.3 The Scalar Product of Two Vectors<br \/>\n7.4 Work Done by a Varying Force<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49152\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-27 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">7.5 Kinetic Energy and the Work-Kinetic Energy Theorem<br \/>\n7.6 Potential Energy of a System<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49158\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-28 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">7.7 Conservative and Nonconservative Forces<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49164\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-29 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">7.7 Conservative and Nonconservative Forces<br \/>\n7.8 Relationship Between Conservative Forces and Potential Energy<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49170\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-30 even\">\n\t<td class=\"column-1\">Chapter 8<\/td><td class=\"column-2\">\u7b2c\u516b\u7ae0 Conservation of Energy<br \/>\n8.2 The Isolated System<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49176\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-31 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">8.1 The Nonisolated System: Conservation of Energy<br \/>\n8.2 The Isolated System<br \/>\n8.3 Situations Involving Kinetic Friction<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49182\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-32 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">8.4 Changes in Mechanical Energy for Nonconservative Forces<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49188\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-33 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">8.4 Changes in Mechanical Energy for Nonconservative Forces<br \/>\n8.5 Power<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49194\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-34 even\">\n\t<td class=\"column-1\">Chapter 9<\/td><td class=\"column-2\">\u7b2c\u4e5d\u7ae0 Systems of Particles and Conservation of Linear Momentum<br \/>\n9.1 Linear Momentum and Its Conservation<br \/>\n9.2 Isolated System<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49200\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-35 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">9.4 Collisions in One Dimension<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49206\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-36 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">9.5 Collisions in Two Dimensions<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49212\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-37 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">9.6 The Center of Mass<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49218\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-38 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">9.7 Motion of a System of Particles<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49224\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-39 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">9.8 Deformable Systems<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49230\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-40 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">9.9 Rocket Propulsion<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49236\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-41 odd\">\n\t<td class=\"column-1\">Chapter 10<\/td><td class=\"column-2\">\u7b2c\u5341\u7ae0 Rotation of a Rigid Object About a Fixed Axis<br \/>\n10.1 Angular Position, Velocity, and Acceleration<br \/>\n10.2 Rotational Kinematics: The Rigid Object Under Constant Angular Acceleration<br \/>\n10.3 Angular and Translational Quantities<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49242\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-42 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">10.4 Rotational Kinetic Energy<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49248\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-43 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">10.5 Calculation of Moments of Inertia<br \/>\n10.6 Torque<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49254\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-44 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">10.7 The Rigid Body Under a Net Torque (1\/3)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49260\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-45 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">10.7 The Rigid Body Under a Net Torque (2\/3)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49266\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-46 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">10.7 The Rigid Body Under a Net Torque (3\/3)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49272\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-47 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">10.8 Energy Considerations in Rotational Motion<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49278\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-48 even\">\n\t<td class=\"column-1\">Chapter 11<\/td><td class=\"column-2\">\u7b2c\u5341\u4e00\u7ae0 Conservation of Angular Momentum<br \/>\n11.1 The Vector Product and Torque<br \/>\n11.2 Angular Momentum: The Nonisolated System<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49284\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-49 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">11.3 Angular Momentum of a Rotating Rigid Object<br \/>\n11.4 The Isolated System: Conservation of Angular Momentum<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49290\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-50 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">11.4 The Isolated System: Conservation of Angular Momentum<br \/>\n11.5 The Motion of Gyroscopes and Tops<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49296\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-51 odd\">\n\t<td class=\"column-1\">Chapter 12<\/td><td class=\"column-2\">\u7b2c\u5341\u4e8c\u7ae0 Static Equilibrium Elasticity<br \/>\n12.1 The Rigid Object in Equilibrium<br \/>\n12.2 More on the Center of Gravity<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49302\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-52 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">12.3 Examples of Rigid Objects in Equilibrium<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49308\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-53 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">12.4 Elastic Properties of Solids  (1\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49314\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-54 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">12.4 Elastic Properties of Solids (2\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49320\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-55 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">\u540c\u5b78\u63d0\u51fa\u7684\u554f\u984c\uff1a\u975c\u529b\u5e73\u8861\u3001\u529b\u77e9<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49326\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-56 even\">\n\t<td class=\"column-1\">Chapter 14<\/td><td class=\"column-2\">\u7b2c\u5341\u56db\u7ae0 Fluids<br \/>\n14.1 Pressure<br \/>\n14.2 Variation of Pressure with Depth<br \/>\n14.3 Pressure Measurements<br \/>\n14.4 Buoyancy Forces and Archimede\u2019s Principle<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49332\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-57 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">14.5 Fluid Dynamics<br \/>\n14.6 Bernoulli\u2019s Equation<br \/>\n14.7 Other applications of fluid dynamics<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49338\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-58 even\">\n\t<td class=\"column-1\">Chapter 15<\/td><td class=\"column-2\">\u7b2c\u5341\u4e94\u7ae0 Oscillation Motion<br \/>\n15.1 Motion of an Object Attached to a Spring<br \/>\n15.2 The Particle in Simple Harmonic Motion (1\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49344\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-59 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">15.2 The Particle in Simple Harmonic Motion (2\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49350\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-60 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">15.3 Energy of the Simple Harmonic Oscillator<br \/>\n15.4 Comparing Simple Harmonic Motion with Uniform Circular Motion<br \/>\n15.5 The Pendulum<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49356\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-61 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">15.6 Damped Oscillations (1\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49362\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-62 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">15.6 Damped Oscillations (2\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49368\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-63 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">15.7 Forced Oscillations<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49374\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-64 even\">\n\t<td class=\"column-1\">Chapter 16<\/td><td class=\"column-2\">\u7b2c\u5341\u516d\u7ae0 Wave Motion<br \/>\n16.1 Propagation of a Disturbance<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49380\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-65 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">16.2 The Traveling Wave Model<br \/>\n16.3 The Speed of Waves on Strings<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49386\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-66 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">16.4 Reflection and Transmission<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49392\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-67 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">16.5 Rate of Energy Transfer by Sinusoidal Waves on Strings<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49398\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-68 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">16.6 The Linear Wave Equation \u2013 Physical Model<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49404\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-69 odd\">\n\t<td class=\"column-1\">Chapter 18<\/td><td class=\"column-2\">\u7b2c\u5341\u516b\u7ae0 Superposition and Standing   (\u7b2c\u5341\u4e03\u7ae0\u5408\u4f75\u7b2c\u5341\u516b\u7ae0\u8b1b\u8ff0)<br \/>\n18.1 Superposition and Interferences18.2 Standing Waves<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49410\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-70 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">18.3 Standing Waves in Strings Fixed at Both Ends<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49416\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-71 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">18.4 Resonance<br \/>\n18.5 Standing waves in air columns<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49422\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-72 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">18.6 Standing Waves in Rods and Membranes<br \/>\n18.7 Beats: Interference in Time<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49428\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-73 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">18.8 Nonsinusoidal Wave Patterns (1\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49434\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-74 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">18.8 Nonsinusoidal Wave Patterns (2\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49440\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-75 odd\">\n\t<td class=\"column-1\">Chapter 19<\/td><td class=\"column-2\">\u7b2c\u5341\u4e5d\u7ae0 Temperature<br \/>\n19.1 Temperature and the Zeroth Law of Thermodynamics<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49446\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-76 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">19.2 Thermometers and the Celsius Temperature scale<br \/>\n19.3 The Constant-Volume Gas Thermometer and the Absolute Temperature Scale<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49452\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-77 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">19.4 Thermal Expansion of Solids and Liquids<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49458\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-78 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">19.5 Macroscopic Description of an Ideal Gas<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49464\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-79 odd\">\n\t<td class=\"column-1\">Chapter 20<\/td><td class=\"column-2\">\u7b2c\u4e8c\u5341\u7ae0 The First Law of Thermodynamics<br \/>\n20.1 Heat and Internal Energy<br \/>\n20.2 Specific Heat and Calorimetry<br \/>\n20.3 Latent Heat<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49470\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-80 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">20.2 Specific Heat and Calorimetry<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49476\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-81 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">20.3 Latent Heat<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49482\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-82 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">20.4 Work and Heat in Thermodynamics<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49488\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-83 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">20.5 The First Law of Thermodynamics<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49494\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-84 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">20.6 Some Applications of the First Law of Thermodynamics<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49500\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-85 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">20.7 Energy Transfer Mechanisms<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49506\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-86 even\">\n\t<td class=\"column-1\">Chapter 21<\/td><td class=\"column-2\">\u7b2c\u4e8c\u5341\u4e00\u7ae0 The Kinetic Theory of Gases<br \/>\n21.1 Molecular Model of an Ideal Gas<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49512\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-87 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">21.2 Molecular Specific Heat of an Ideal Gas<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49518\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-88 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">21.3 Adiabatic Processes for an Ideal Gas<br \/>\n21.4 The Equipartition of Energy<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49524\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-89 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">21.5 Distribution of Molecular Speeds (1\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49530\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-90 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">21.5 Distribution of Molecular Speeds (2\/2)<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49536\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-91 odd\">\n\t<td class=\"column-1\">Chapter 22<\/td><td class=\"column-2\">\u7b2c\u4e8c\u5341\u4e8c\u7ae0 Heat Engines, Entropy, and the Second Law of Thermodynamics<br \/>\n22.1 Heat Engines and the Second Law of Thermodynamics<br \/>\n22.2 Heat Pumps and Refrigerators<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49542\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-92 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">22.3 Reversible and Irreversible Processes<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49548\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-93 odd\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">22.4 The Carnot Engine<br \/>\n22.5 Gasoline and Diesel Engines<br \/>\n22.6 Entropy<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49554\">Watch Online<\/a><\/td>\n<\/tr>\n<tr class=\"row-94 even\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">22.7 Entropy change in irreversible process<br \/>\n22.8 Entropy on a Microscopic Scale<\/td><td class=\"column-3\"><a href=\"\/?post_type=course_page&amp;p=49560\">Watch Online<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-121 from cache --><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"penci-ercol-50 penci-ercol-order-3 penci-sticky-ct    elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-5f099062\" data-id=\"5f099062\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b79cc32 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"5b79cc32\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tCOURSE\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-382e67d7 elementor-nav-menu__text-align-center elementor-nav-menu__align-left elementor-nav-menu--dropdown-tablet elementor-nav-menu--toggle elementor-nav-menu--burger elementor-widget elementor-widget-nav-menu\" data-id=\"382e67d7\" data-element_type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;svg class=\\&quot;e-font-icon-svg e-fas-caret-down\\&quot; viewBox=\\&quot;0 0 320 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;toggle&quot;:&quot;burger&quot;}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<link rel=\"stylesheet\" href=\"https:\/\/ocw.nycu.edu.tw\/wp-content\/uploads\/elementor\/css\/custom-pro-widget-nav-menu.min.css?ver=1776064852\">\t\t\t<nav class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-double-line e--animation-slide\">\n\t\t\t\t<ul id=\"menu-1-382e67d7\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-121577\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/self-learning-courses-for-high-school-students\" class=\"elementor-item\">Self-learning courses for high school students<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-121578\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/pre-university-courses\" class=\"elementor-item\">Pre-University Courses<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5381\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\" class=\"elementor-item\">College of Science<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5377\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-engineering\" class=\"elementor-item\">College of Engineering<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5376\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-electrical-and-computer-engineering\" class=\"elementor-item\">College of Electrical and Computer Engineering<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5380\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-management\" class=\"elementor-item\">College of Management<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5375\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-computer-science\" class=\"elementor-item\">College of Computer Science<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5374\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-biological-science-and-technology\" class=\"elementor-item\">College of Engineering Bioscience<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5379\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-humanities-and-social-sciences\" class=\"elementor-item\">College of Humanities Arts and Social Sciences<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5378\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-hakka-affair-culture\" class=\"elementor-item\">College of Hakka Affair Culture<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118070\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/school-of-law\" class=\"elementor-item\">School of Law<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118069\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/school-of-nursing-2\" class=\"elementor-item\">School of Nursing<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118071\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-photonics\" class=\"elementor-item\">College of Photonics<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-125874\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-biomedical-science-and-engineering\" class=\"elementor-item\">College of Biomedical Science and Engineering<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-132738\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-life-sciences-en\" class=\"elementor-item\">College of Life Sciences<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-141797\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/colege-of-medicine-en\" class=\"elementor-item\">College of Medicine<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118072\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/course-of-chinese-center\" class=\"elementor-item\">Course of Chinese Center<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-120431\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/liberal-arts-college\" class=\"elementor-item\">Forum Of Liberal Arts<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-123746\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/speech-of-general-education-center\" class=\"elementor-item\">Contemporary Civilization<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-128240\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/reading-of-classic-masterpiece\" class=\"elementor-item\">Reading of Classic Masterpiece<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-123745\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/course-of-general-education-center-2\" class=\"elementor-item\">Course of General Education Center<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t<div class=\"elementor-menu-toggle\" role=\"button\" tabindex=\"0\" aria-label=\"\u9078\u55ae\u5207\u63db\" aria-expanded=\"false\">\n\t\t\t<svg aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--open e-font-icon-svg e-eicon-menu-bar\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M104 333H896C929 333 958 304 958 271S929 208 896 208H104C71 208 42 237 42 271S71 333 104 333ZM104 583H896C929 583 958 554 958 521S929 458 896 458H104C71 458 42 487 42 521S71 583 104 583ZM104 833H896C929 833 958 804 958 771S929 708 896 708H104C71 708 42 737 42 771S71 833 104 833Z\"><\/path><\/svg><svg aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--close e-font-icon-svg e-eicon-close\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M742 167L500 408 258 167C246 154 233 150 217 150 196 150 179 158 167 167 154 179 150 196 150 212 150 229 154 242 171 254L408 500 167 742C138 771 138 800 167 829 196 858 225 858 254 829L496 587 738 829C750 842 767 846 783 846 800 846 817 842 829 829 842 817 846 804 846 783 846 767 842 750 829 737L588 500 833 258C863 229 863 200 833 171 804 137 775 137 742 167Z\"><\/path><\/svg>\t\t\t<span class=\"elementor-screen-only\">\u9078\u55ae<\/span>\n\t\t<\/div>\n\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-382e67d7\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-121577\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/self-learning-courses-for-high-school-students\" class=\"elementor-item\" tabindex=\"-1\">Self-learning courses for high school students<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-121578\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/pre-university-courses\" class=\"elementor-item\" tabindex=\"-1\">Pre-University Courses<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5381\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\" class=\"elementor-item\" tabindex=\"-1\">College of Science<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5377\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-engineering\" class=\"elementor-item\" tabindex=\"-1\">College of Engineering<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5376\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-electrical-and-computer-engineering\" class=\"elementor-item\" tabindex=\"-1\">College of Electrical and Computer Engineering<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5380\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-management\" class=\"elementor-item\" tabindex=\"-1\">College of Management<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5375\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-computer-science\" class=\"elementor-item\" tabindex=\"-1\">College of Computer Science<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5374\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-biological-science-and-technology\" class=\"elementor-item\" tabindex=\"-1\">College of Engineering Bioscience<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5379\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-humanities-and-social-sciences\" class=\"elementor-item\" tabindex=\"-1\">College of Humanities Arts and Social Sciences<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-5378\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-hakka-affair-culture\" class=\"elementor-item\" tabindex=\"-1\">College of Hakka Affair Culture<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118070\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/school-of-law\" class=\"elementor-item\" tabindex=\"-1\">School of Law<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118069\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/school-of-nursing-2\" class=\"elementor-item\" tabindex=\"-1\">School of Nursing<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118071\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-photonics\" class=\"elementor-item\" tabindex=\"-1\">College of Photonics<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-125874\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-biomedical-science-and-engineering\" class=\"elementor-item\" tabindex=\"-1\">College of Biomedical Science and Engineering<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-132738\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-life-sciences-en\" class=\"elementor-item\" tabindex=\"-1\">College of Life Sciences<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-141797\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/colege-of-medicine-en\" class=\"elementor-item\" tabindex=\"-1\">College of Medicine<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-118072\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/course-of-chinese-center\" class=\"elementor-item\" tabindex=\"-1\">Course of Chinese Center<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-120431\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/liberal-arts-college\" class=\"elementor-item\" tabindex=\"-1\">Forum Of Liberal Arts<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-123746\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/speech-of-general-education-center\" class=\"elementor-item\" tabindex=\"-1\">Contemporary Civilization<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-128240\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/reading-of-classic-masterpiece\" class=\"elementor-item\" tabindex=\"-1\">Reading of Classic Masterpiece<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-course_page ajax-mega-menu menu-item-123745\"><a href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/course-of-general-education-center-2\" class=\"elementor-item\" tabindex=\"-1\">Course of General Education Center<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>8.1 The Noniso&hellip;<\/p>\n","protected":false},"featured_media":0,"parent":46439,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"footnotes":""},"categories":[2692],"tags":[],"class_list":["post-49182","course_page","type-course_page","status-publish","format-standard","hentry","category-physics-i-101-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction - NYCU OCW<\/title>\n<meta name=\"description\" content=\"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction https:\/\/youtu.be\/ob1YmXBsrfs Back\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction - NYCU OCW\" \/>\n<meta property=\"og:description\" content=\"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction https:\/\/youtu.be\/ob1YmXBsrfs Back\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction\" \/>\n<meta property=\"og:site_name\" content=\"NYCU OCW\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-30T04:56:03+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction\",\"url\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction\",\"name\":\"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction - NYCU OCW\",\"isPartOf\":{\"@id\":\"https:\/\/ocw.nycu.edu.tw\/#website\"},\"datePublished\":\"2022-11-13T17:05:34+00:00\",\"dateModified\":\"2026-06-30T04:56:03+00:00\",\"description\":\"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction https:\/\/youtu.be\/ob1YmXBsrfs Back\",\"breadcrumb\":{\"@id\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction#breadcrumb\"},\"inLanguage\":\"zh-TW\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Homepage\",\"item\":\"https:\/\/ocw.nycu.edu.tw\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ALL COURSE\",\"item\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"College of Science\",\"item\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Department of Electrophysics\",\"item\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"Physics I \u2013 101 Academic Year | Department of Electrophysics Prof. Wen-Bin Jian\",\"item\":\"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\"},{\"@type\":\"ListItem\",\"position\":6,\"name\":\"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ocw.nycu.edu.tw\/#website\",\"url\":\"https:\/\/ocw.nycu.edu.tw\/\",\"name\":\"NYCU OCW\",\"description\":\"\u958b\u653e\u6559\u80b2\u662f\u73fe\u4ee3\u6559\u80b2\u601d\u6f6e\u7684\u4e00\u80a1\u4e3b\u6d41\uff0c\u570b\u5167\u5916\u5927\u5b78\u8fd1\u5e7e\u5e74\u9678\u7e8c\u958b\u653e\u6559\u80b2\u8cc7\u6e90\uff0c\u900f\u904e\u958b\u653e\u5f0f\u8ab2\u7a0b (OpenCourseWare, OCW)\u66a8\u5176\u61c9\u7528\u4e4b\u5efa\u7f6e\u5c07\u77e5\u8b58\u5206\u4eab\u65bc\u793e\u6703\u3002\",\"publisher\":{\"@id\":\"https:\/\/ocw.nycu.edu.tw\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ocw.nycu.edu.tw\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-TW\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/ocw.nycu.edu.tw\/#organization\",\"name\":\"NYCU OCW\",\"url\":\"https:\/\/ocw.nycu.edu.tw\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-TW\",\"@id\":\"https:\/\/ocw.nycu.edu.tw\/#\/schema\/logo\/image\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"NYCU OCW\"},\"image\":{\"@id\":\"https:\/\/ocw.nycu.edu.tw\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction - NYCU OCW","description":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction https:\/\/youtu.be\/ob1YmXBsrfs Back","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction","og_locale":"zh_TW","og_type":"article","og_title":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction - NYCU OCW","og_description":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction https:\/\/youtu.be\/ob1YmXBsrfs Back","og_url":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction","og_site_name":"NYCU OCW","article_modified_time":"2026-06-30T04:56:03+00:00","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction","url":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction","name":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction - NYCU OCW","isPartOf":{"@id":"https:\/\/ocw.nycu.edu.tw\/#website"},"datePublished":"2022-11-13T17:05:34+00:00","dateModified":"2026-06-30T04:56:03+00:00","description":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction https:\/\/youtu.be\/ob1YmXBsrfs Back","breadcrumb":{"@id":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction#breadcrumb"},"inLanguage":"zh-TW","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian\/8-1-the-nonisolated-system-conservation-of-energy-8-2-the-isolated-system-8-3-situations-involving-kinetic-friction#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Homepage","item":"https:\/\/ocw.nycu.edu.tw\/"},{"@type":"ListItem","position":2,"name":"ALL COURSE","item":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2"},{"@type":"ListItem","position":3,"name":"College of Science","item":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science"},{"@type":"ListItem","position":4,"name":"Department of Electrophysics","item":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics"},{"@type":"ListItem","position":5,"name":"Physics I \u2013 101 Academic Year | Department of Electrophysics Prof. Wen-Bin Jian","item":"https:\/\/ocw.nycu.edu.tw\/?course_page=all-course-2\/college-of-science\/department-of-electrophysics\/physics-i-101-academic-year-department-of-electrophysics-prof-wen-bin-jian"},{"@type":"ListItem","position":6,"name":"8.1 The Nonisolated System: Conservation of Energy, 8.2 The Isolated System, 8.3 Situations Involving Kinetic Friction"}]},{"@type":"WebSite","@id":"https:\/\/ocw.nycu.edu.tw\/#website","url":"https:\/\/ocw.nycu.edu.tw\/","name":"NYCU OCW","description":"\u958b\u653e\u6559\u80b2\u662f\u73fe\u4ee3\u6559\u80b2\u601d\u6f6e\u7684\u4e00\u80a1\u4e3b\u6d41\uff0c\u570b\u5167\u5916\u5927\u5b78\u8fd1\u5e7e\u5e74\u9678\u7e8c\u958b\u653e\u6559\u80b2\u8cc7\u6e90\uff0c\u900f\u904e\u958b\u653e\u5f0f\u8ab2\u7a0b (OpenCourseWare, OCW)\u66a8\u5176\u61c9\u7528\u4e4b\u5efa\u7f6e\u5c07\u77e5\u8b58\u5206\u4eab\u65bc\u793e\u6703\u3002","publisher":{"@id":"https:\/\/ocw.nycu.edu.tw\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ocw.nycu.edu.tw\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-TW"},{"@type":"Organization","@id":"https:\/\/ocw.nycu.edu.tw\/#organization","name":"NYCU OCW","url":"https:\/\/ocw.nycu.edu.tw\/","logo":{"@type":"ImageObject","inLanguage":"zh-TW","@id":"https:\/\/ocw.nycu.edu.tw\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":"NYCU OCW"},"image":{"@id":"https:\/\/ocw.nycu.edu.tw\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=\/wp\/v2\/page\/49182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=\/wp\/v2\/page"}],"about":[{"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=\/wp\/v2\/types\/course_page"}],"replies":[{"embeddable":true,"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=49182"}],"version-history":[{"count":8,"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=\/wp\/v2\/page\/49182\/revisions"}],"predecessor-version":[{"id":184889,"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=\/wp\/v2\/page\/49182\/revisions\/184889"}],"up":[{"embeddable":true,"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=\/wp\/v2\/page\/46439"}],"wp:attachment":[{"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=49182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=49182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ocw.nycu.edu.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=49182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}