{"id":231138,"date":"2025-06-10T13:29:43","date_gmt":"2025-06-10T13:29:43","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=231138"},"modified":"2025-06-10T13:29:46","modified_gmt":"2025-06-10T13:29:46","slug":"conservation-of-mechanical-energy-energy-skate-park-a-phet-simulation-k","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/10\/conservation-of-mechanical-energy-energy-skate-park-a-phet-simulation-k\/","title":{"rendered":"Conservation of Mechanical Energy: Energy Skate Park A PhET Simulation k:"},"content":{"rendered":"\n

Conservation of Mechanical Energy: Energy Skate Park A PhET Simulation k: https:\/\/phet.colorado.edu\/sims\/html\/energy-skate-park-basics\/latest\/energy-skate-park- asics_en.html rocedures: 1. Position the skater at the edge of the ramp. 2. Let him slide on the ramp. 3. Observe the skater as he skates on the ramp. Jestions: 1. What type\/s of mechanical energy is\/are present in your activity? Answer: Conservation of mechanical energy 2. What is the velocity of the skater at its maximum height? 3. What happens to the velocity of the skater when it reaches the bottom part of the ramp? Did it increase? Decrease? Or Zero? 4. Complete the diagram below. Underline the correct answer. KE: (increases, decreases) PE: (increases, decreases) Has maximum (KE, PE) Has zero (KE, PE) KE: (increases, decreases) PE Full text: 1088 Has maximum (KE, PE) (KE, PE) Has zero<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Answers<\/strong><\/h3>\n\n\n\n

1. Skater moving down the ramp (Top Left):<\/strong><\/p>\n\n\n\n

    \n
  • KE:\u00a0<u>increases<\/u><\/strong><\/li>\n\n\n\n
  • PE:\u00a0<u>decreases<\/u><\/strong><\/li>\n<\/ul>\n\n\n\n

    2. Skater at the bottom of the ramp (Top Right):<\/strong><\/p>\n\n\n\n

      \n
    • Has maximum\u00a0(<u>KE<\/u>, PE)<\/strong><\/li>\n\n\n\n
    • Has zero\u00a0(KE,\u00a0<u>PE<\/u>)<\/strong><\/li>\n<\/ul>\n\n\n\n

      3. Skater moving up the ramp (Bottom Left):<\/strong><\/p>\n\n\n\n

        \n
      • KE:\u00a0<u>decreases<\/u><\/strong><\/li>\n\n\n\n
      • PE:\u00a0<u>increases<\/u><\/strong><\/li>\n<\/ul>\n\n\n\n

        4. Skater at the top of the ramp (Bottom Right):<\/strong><\/p>\n\n\n\n

          \n
        • Has maximum\u00a0(KE,\u00a0<u>PE<\/u>)<\/strong><\/li>\n\n\n\n
        • Has zero\u00a0(<u>KE<\/u>, PE)<\/strong><\/li>\n<\/ul>\n\n\n\n
          \n\n\n\n

          Explanation<\/strong><\/h3>\n\n\n\n

          This activity demonstrates the law of conservation of mechanical energy, which states that in an isolated system (without friction), the total mechanical energy remains constant. Mechanical energy is the sum of an object’s Kinetic Energy (KE) and Potential Energy (PE).<\/p>\n\n\n\n

            \n
          • Potential Energy (PE)<\/strong>\u00a0is the energy of position, calculated as PE = mgh (mass \u00d7 gravity \u00d7 height). It is highest when the skater is at the highest point of the ramp and zero at the lowest point.<\/li>\n\n\n\n
          • Kinetic Energy (KE)<\/strong>\u00a0is the energy of motion, calculated as KE = \u00bdmv\u00b2 (\u00bd \u00d7 mass \u00d7 velocity\u00b2). It is highest when the skater is moving fastest and zero when the skater is momentarily at rest.<\/li>\n<\/ul>\n\n\n\n

            As the skater moves, energy continuously transforms between these two forms:<\/p>\n\n\n\n

              \n
            1. Skater moving down (Top Left):<\/strong>\u00a0As the skater slides down the ramp, their height (h) decreases, causing their\u00a0Potential Energy (PE) to decrease<\/strong>. This lost potential energy is converted into kinetic energy. Consequently, their velocity (v) increases, causing their\u00a0Kinetic Energy (KE) to increase<\/strong>.<\/li>\n\n\n\n
            2. Skater at the bottom (Top Right):<\/strong>\u00a0At the very bottom of the ramp, the skater is at the lowest possible height (h=0). Therefore, their\u00a0Potential Energy (PE) is zero<\/strong>. At this point, all the initial potential energy has been converted into kinetic energy, so the skater reaches their maximum velocity. This means their\u00a0Kinetic Energy (KE) is at its maximum<\/strong>.<\/li>\n\n\n\n
            3. Skater moving up (Bottom Left):<\/strong>\u00a0As the skater moves up the other side of the ramp, their height (h) increases, causing their\u00a0Potential Energy (PE) to increase<\/strong>. This gain in potential energy comes from the conversion of kinetic energy. As a result, the skater’s velocity (v) decreases, causing their\u00a0Kinetic Energy (KE) to decrease<\/strong>.<\/li>\n\n\n\n
            4. Skater at the top (Bottom Right):<\/strong>\u00a0When the skater reaches the highest point on the other side, they momentarily stop (v=0) before changing direction. At this peak, their\u00a0Kinetic Energy (KE) is zero<\/strong>. Because they are at their maximum height, their\u00a0Potential Energy (PE) is at its maximum<\/strong>, equal to the initial potential energy they started with.<\/li>\n<\/ol>\n\n\n\n
              \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

              Conservation of Mechanical Energy: Energy Skate Park A PhET Simulation k: https:\/\/phet.colorado.edu\/sims\/html\/energy-skate-park-basics\/latest\/energy-skate-park- asics_en.html rocedures: 1. Position the skater at the edge of the ramp. 2. Let him slide on the ramp. 3. Observe the skater as he skates on the ramp. Jestions: 1. What type\/s of mechanical energy is\/are present in your activity? Answer: Conservation […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-231138","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/231138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=231138"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/231138\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=231138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=231138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=231138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}