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Nobody really makes energy. It is just changed from one form to another. This is called the transfer of energy.
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Category Videos
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Not Right For WatchKnowLearn
Ages: 5 - 10
1329 Views:
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Would you want to live in a world without electricity? No computer. No lights. No video games. Electricity is a form of energy. People don't actually make energy. They just take one form of it and change it into another. This video tells you what... it take to make electricity and how it gets to you. This video also addresses the transfer of energy from one form to another. Run time 11:50.
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June 3, 2010 at 10:40 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
266 Views:
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Sal Khan discusses the sweat on our skin on a molecular level. (04:29)
August 10, 2012 at 04:07 PM
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Not Right For WatchKnowLearn
Ages: 8 - 18
798 Views:
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Bomb Squad
From newtonsapple.tv, produced by Newton's Apple
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This seven minute video is about bombs and explosives. It deals with both bombs and how they are dealt with by authorities. Students should be reminded that they should never touch something that has been left and to call the authorities. Good instru...ctions about not touching blasting caps as well. Teachers should always remind students of the dangers involved.
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May 29, 2011 at 05:18 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
426 Views:
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Booming Sands
From pbslearningmedia.org, produced by WGBH Educational Foundation
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In this video segment, adapted from NOVA scienceNOW, learn about the natural sound phenomenon of booming sand dunes. There are about 30 locations on Earth where sand dunes produce a low, rumbling tone. Researchers have found a few key factors that bo...oming sand dunes have in common, including sand grains that are round and uniform in size, as well as layers of sand with different water content. Under the right conditions, loose sand will avalanche, transforming potential energy into kinetic and acoustic energy and producing a booming sound. (4:17)
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April 18, 2012 at 11:25 PM
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Not Right For WatchKnowLearn
Ages: 8 - 18
987 Views:
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Find out why this toy is a "wonderful piece of physics". Fun video for kids to watch, this is one of those birds that perches on the edge of a glass and puts it beak into the water and then goes back up. This action continues without any help from a ...person. The explanation is interesting. Video is of good quality. Run time 04:45.
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August 13, 2009 at 05:37 AM
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Not Right For WatchKnowLearn
Ages: 13 - 18
932 Views:
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In this interactive activity adapted from NOVA Online, learn how a typical photovoltaic cell converts solar energy into electricity. Explore the components of a photovoltaic cell, including the silicon layers, metal backing, antireflective coating, a...nd metal conductor strips. Using animations, investigate why the silicon layers are doped with phosphorous and boron, and how an electric field is used to generate electricity from sunlight. No audio.
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August 12, 2010 at 09:29 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
218 Views:
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Burly Hurls
From youtube.com, produced by Minutephysics
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This video makes an upbeat comparison of different projectiles used in track and field events. Calculations are made to determine the energy required to throw a javoline, discus, and hammer (01:20).
September 18, 2012 at 08:54 PM
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