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CRIntPhysSciCh13Voca
CRIntPhysSciCh13Vocan
Question | Answer |
---|---|
object by the application of a force that causes the object to move in the direction of the force | work |
a quantity that measures the rate at which work is done or energy is transformed; the rate at which work is done, or how much work is done in a given amount of time. | power |
a quantity that expresses how much a machine multiplies force or distance | mechanical advantage |
one of six basic types of machines, which are the basis for all other forms of machines | simple machine |
a machine made of more than one simple machine | compound machine |
the ability to do work | energy |
the energy that an object has because of its position, shape or condition of the object | potential energy |
the energy of an object due to its motion | kinetic energy |
the amount of work an object can do because of the object’s kinetic and potential energies | mechanical energy |
a quantity, usually expressed as a percentage, that measures the ratio of useful work output to work input | efficiency |