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11 Cards in this Set
- Front
- Back
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work
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when you exert a force on an object that causes the object to move some distance
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joule
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a unit of work equal to one newton-meter
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power
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the rate at which work is done
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pascal
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a unit of pressure equal to 1 newton per square meter
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machine
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a device that allows you to do work in a way that is easier
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input force
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the force you exert on a machine
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output force
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the force the machine works on an object
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input work
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the work done on a machine as the input force acts through the input distance
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output work
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the work done by a machine as the output force acts through the output distance
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mechanical advantages
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the number of times a machine increases a force exerted on it
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efficiency
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the percentage of the input work that is converted to output work
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