{"id":434,"date":"2020-10-13T10:17:57","date_gmt":"2020-10-13T10:17:57","guid":{"rendered":"https:\/\/www.energykids.eu\/?page_id=451"},"modified":"2024-12-17T17:46:53","modified_gmt":"2024-12-17T17:46:53","slug":"kinetic-energy","status":"publish","type":"page","link":"https:\/\/www.energykids.eu\/bg\/science\/kinetic-energy\/","title":{"rendered":"Kinetic energy"},"content":{"rendered":"

Kinetic energy<\/h2>\n\n\n

This is the energy of motion. This is the energy an object has because it’s moving. \u00a0So, anytime you see something moving, it has kinetic energy!
There are many forms of kinetic energy \u2013 vibrational (the energy due to vibrational motion), rotational (the energy due to rotational motion), and translational (the energy due to motion from one location to another).
Kinetic energy expresses the fact that a moving object can do work on anything it hits. The total mechanical energy of an object is the sum of its kinetic energy and potential energy.<\/p>\n\n\n\n

If the object is moving the kinetic energy equals one half times the mass (m) of the object times (t) the square of the speed (v) of the object:<\/p>\n\n\n\n

E=1\/2*m*v2<\/sup>,<\/strong><\/p>\n\n\n\n

where:<\/p>\n\n\n\n

m<\/strong> \u2013 the mass of the object is measured in kg. If the mass is in grams for example you have to calculate it in kg to use it properly in the formula.<\/p>\n\n\n\n

v<\/strong> \u2013 velocity of the object is measured in m\/s (meters per second)<\/p>\n\n\n\n

The answer should always be stated in joules (J), which is the standard unit of measurement for kinetic energy.<\/p>\n\n\n\n

1 J is equivalent to 1 kg * m2<\/sup>\/s2<\/sup>.<\/strong><\/em><\/p>\n\n\n\n

The velocity of the object (if you do not know it) can be calculated if we know the distance and time of traveling of the object using the equations:<\/p>\n\n\n\n

v = d \/ t,<\/p>\n\n\n\n

where,<\/p>\n\n\n\n

d \u2013 distance, measured in meters (m)<\/p>\n\n\n\n

t \u2013 time, measured in seconds (s)<\/p>\n\n\n\n\n\n

kinetic energy concept<\/strong><\/h4>\n\n\n\n

Do you know why if you bike and try to stop suddenly it\u2019s not possible and it will take a few seconds to stop completely? Do you know why it\u2019s dangerous to step out suddenly on the road and why the car cannot stop immediately? This is because of the kinetic energy. Look at the equation above. The kinetic energy depends of the mass and speed of the objective (car). Therefore of a truck and car are driving with one and the same speed the truck needs more time and distance to stop, because the truck is more heavy than the car. The same truck can do more work on you than the car.<\/p>\n\n\n\n

Kinetic energy \u2013 examples:<\/h5>\n\n\n\n

Kinetic energy of  moving truck<\/strong><\/p>\n\n\n\n

\"truck<\/figure>\n\n\n\n
\"moving<\/figure>\n\n\n\n

Speed and stopping distance<\/a> (see more at shofior.com<\/a>).<\/em><\/p>\n\n\n\n

Kinetic energy of sledding<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n
<\/div>","protected":false},"excerpt":{"rendered":"

Kinetic energy This is the energy of motion. This is the energy an object has because it’s moving. \u00a0So, anytime<\/p>","protected":false},"author":1,"featured_media":1698,"parent":353,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_uag_custom_page_level_css":"","_kadence_starter_templates_imported_post":false,"footnotes":""},"categories":[39],"tags":[],"class_list":["post-434","page","type-page","status-publish","has-post-thumbnail","hentry","category-energy-type"],"uagb_featured_image_src":{"full":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",1280,1280,false],"thumbnail":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-150x150.jpg",150,150,true],"medium":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-300x300.jpg",300,300,true],"medium_large":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-768x768.jpg",768,768,true],"large":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-1024x1024.jpg",800,800,true],"hd_qu_size2":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",400,400,false],"1536x1536":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",1280,1280,false],"2048x2048":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",1280,1280,false],"trp-custom-language-flag":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",12,12,false],"colormag-highlighted-post":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-392x272.jpg",392,272,true],"colormag-featured-post-medium":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-390x205.jpg",390,205,true],"colormag-featured-post-small":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-130x90.jpg",130,90,true],"colormag-featured-image":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-800x445.jpg",800,445,true],"colormag-default-news":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-150x150.jpg",150,150,true],"colormag-featured-image-large":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push-1280x600.jpg",1280,600,true],"colormag-elementor-block-extra-large-thumbnail":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",480,480,false],"colormag-elementor-grid-large-thumbnail":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",417,417,false],"colormag-elementor-grid-small-thumbnail":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",285,285,false],"colormag-elementor-grid-medium-large-thumbnail":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",198,198,false],"gamipress-points":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",50,50,false],"gamipress-achievement":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",100,100,false],"gamipress-rank":["https:\/\/www.energykids.eu\/wp-content\/uploads\/2024\/12\/push.jpg",100,100,false]},"uagb_author_info":{"display_name":"energyadmin","author_link":"https:\/\/www.energykids.eu\/bg\/author\/energyadmin\/"},"uagb_comment_info":0,"uagb_excerpt":"Kinetic energy This is the energy of motion. This is the energy an object has because it’s moving. \u00a0So, anytime","_links":{"self":[{"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/pages\/434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/comments?post=434"}],"version-history":[{"count":2,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/pages\/434\/revisions"}],"predecessor-version":[{"id":2150,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/pages\/434\/revisions\/2150"}],"up":[{"embeddable":true,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/pages\/353"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/media\/1698"}],"wp:attachment":[{"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/media?parent=434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/categories?post=434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.energykids.eu\/bg\/wp-json\/wp\/v2\/tags?post=434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}