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There are 4 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 9 - 15
1084 Views:
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This video is designed to provide a basic introduction to gears suitable for grades 4 to 9. Gear rotation, gear ratio, rates of rotation, mechanical advantage and examples of use are included. A second video, " Time, Clocks and Gears" explains how ge...ars are used in mechanical clocks to control the hands on an analog clock.
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December 5, 2009 at 11:15 PM
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Not Right For WatchKnowLearn
Ages: 8 - 14
1123 Views:
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This video is designed to support the teaching of gears at an introductory level by explaining the role that gears play in mechanical clocks. Tower clocks, like Big Ben, use an elaborate set of gears to display time. The video includes information ab...out Foliot and Pendulum clock mechanisms.
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December 5, 2009 at 11:13 PM
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Not Right For WatchKnowLearn
Ages: 8 - 16
1272 Views:
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This video discusses the history behind the wheel and how it was changed to make a gear. The video also discusses gears, gear speed and direction, circumference, diameter, radius, combining different size gears, driver gear vs driven gear, gear trai...ns, gear ratio, gear friction, gear pairs (compound gears), lever arm, torque, and rim force. (08:50)
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December 5, 2009 at 11:32 PM
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Not Right For WatchKnowLearn
Ages: 8 - 15
1308 Views:
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This ten-minute video continues with discussion of concepts associated with gears, gear speed and direction, circumference, diameter, radius, combining different size gears, driver gear vs driven gear, gear trains, gear ratio, gear friction, gear pai...rs (compound gears), lever arm, torque, and rim force.
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December 5, 2009 at 11:34 PM
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