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Chapter. 12 Vocab
Ch 12
Question | Answer |
---|---|
The quantity of energy transferred by a force when it is applied to a body and causes that body to move in the motion of the force. | Work |
A quantity that measures the rate at which work is done. | Power |
A quantity that measures how much a machine multiplies force or distance. | Mechanical Machine |
One of the six basic types of machines of which all other machines are composed. One of the six basic types of machines of which all other machines are composed. | Simple Machines |
A machine made of more than one simple machine. | Compound Machine |
The stored energy resulting from the relative positions of objects in a system. | Potential Energy |
the energy of a moving object due to its motion. | Kinetic Motion |
The sum of the kinetic and potential energy of large scale objects in a system. | Mechanical Energy |
A quantity usually expressed as a percentage, that measures the ratio of useful work output to work input. | Efficiency |