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Vocab.

ch. 5

QuestionAnswer
work transfer of energy that occurs when a force makes an object move; measured in joules.
power amount of work done, or the amount of energy transferred, divided by the time required to do the work or transfer the energy; measured in watts
machine device that makes doing work easier by increasing the force applied to an object, changing the direction of an applied force, or increasing the distance over which a force can be applied.
input force the force that is applied to the machine
output the force applied by the machine
mechanical advantage ration of the output force exerted by a machine to the input force applied to the machine.
efficiency ration of the output work done by the machine to the input work done on the machine expressed as a percentage.
Created by: bucky04422
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