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9 Cards in this Set
- Front
- Back
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A 750-W motor might also be rated as a ______________ |
1-horsepower motor |
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Why were horses chosen by James Watt as the choice of comparison for machine power? |
Horses were the most commonly used source of power in the 1700s |
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30/20 |
1.5m |
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The power of a machine measures __________________ |
Its rate of doing work. |
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Suppose you need to move two boxes from one closest to another. Moving both boxes together requires ____________ as compared to moving them individually. |
Equal work and power |
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Power is ___________________ |
directly related to work and inversely related to time. |
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10.0 * 0.75 |
7.5 J |
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Direction motion does no ________ on an object |
Work |
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Calculate work by * force- by the distance object moves |
Advantage |
