Youtor
Gear Basics
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=odpsm3ybPsA
Purchase: http://hilaroad.com/video This video resource 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 gears are used in mechanical clocks to control the hands on an analog clock.
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