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There are 28 videos in this category and 116 videos in 16 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 14 - 18
3690 Views:
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In this clip, we see a technician maintaining live power lines. A helicopter is flown close up to the wire so that the technician can repair a weak spot in the power line. (03:23)
January 12, 2013 at 05:00 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
3151 Views:
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In this clip, we learn about the birth of the power grid created by Thomas Edison. Learn about how it has evolved over the years. (01:35)
January 12, 2013 at 04:52 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
2912 Views:
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An introduction to Resistance. We also define ohmic versus non-ohmic with graphs. We define the slope of the graph as resistance. There is also a discussion of a graph of Electric Potential Energy as a function of Position and we compare it to the... Mechanical Energies in the Spacewarp. Lastly, we derive the three equations for Electric Power. (13:36)
Content Times:
0:30 Defining Electrical Resistance
1:14 The Dimensions for Resistance (ohms)
2:57 Ohmic vs. Non-Ohmic
5:03 A Graphical Look at Energy in a Basic Circuit
8:47 Spacewarp! (A Mechanical Equivalent of the Electric Circuit)
10:07 Deriving the Equations for Electric Power
13:16 The Dimensions for Power (watts)
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Next Video:
Finding the Cost to Power Light Bulbs and Defining KiloWatt Hour
Previous Video:
Introduction to Conventional Current and Direct Current with an Example Problem
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December 2, 2013 at 05:11 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
4621 Views:
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We all know the words around electricity -- “charge,” “positive,”
“battery” and more. But where do they come from and what do they really mean? Let the history of these words illuminate the physics of electric phenomena. (06:56)
July 23, 2012 at 09:54 AM
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Not Right For WatchKnowLearn
Ages: 14 - 18
3310 Views:
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Learn about what happens during a black out in this clip from America Revealed. The clip explores the major black out that happened in New York in 2003. (02:59)
January 14, 2013 at 11:06 AM
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Not Right For WatchKnowLearn
Ages: 8 - 12
6435 Views:
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Electricity is a form of power that is produced by the movement of electrons. Static electricity and lightning are natural forms of electricity, and they occur when electrons jump from one object to another. Learn more about electricity with this c...artoon animation from StudyJams. A short, self-checking quiz is also included with this link.
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June 4, 2011 at 08:24 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
4800 Views:
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Electricity is used to light up a bulb by heating up the tungsten filament to the point that it glows white. Find out why light bulbs burn out with information from science teacher, Steve Jones. There are English captions.
May 11, 2010 at 08:33 PM
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Not Right For WatchKnowLearn
Ages: 7 - 11
7803 Views:
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Learn about electricity and circuits with this 3 minute music video from School House Rock. (03:00)
April 15, 2010 at 10:11 AM
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Not Right For WatchKnowLearn
Ages: 8 - 13
6362 Views:
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Electricity is a form of power that is produced by the movement of electrons. When the flow of electrons is constant, it produces an electrical current. Learn more about electricity with this slide show from StudyJams. Detailed images are set to m...usic while information is written under each photo. A short, self-checking quiz is also included with this link.
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May 28, 2011 at 01:44 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
6138 Views:
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A tour through the world of the light-emitting diode (LED). Learn who invented it, how to use it, and how to make your own. Very geeky, but cool for electronics buffs. Documentary.
May 25, 2010 at 04:14 PM
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