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IPC
Chapter 9 Vocabulary
Term | Definition |
---|---|
Work | quantity of energy transferred by a force when it is applied to a body and causes that body to move in the direction of the force |
Power | a quantity that measures the rate at which work is done |
mechanical advantage | a quantity that measures how much a machine multiplies force or distance |
simple machine | one of the six basic types of machines of which all other machines are composed |
compound machine | a machine made of more than one simple machine |
potential energy | the stored energy resulting from the relative positions of objects in a system |
kinetic energy | the energy of a moving object due to its motion |
mechanical energy | the sum of the kinetic and potential energy of large-scale objects in a system |
efficiency | a quantity, usually expressed as a percentage, that measures the ratio of useful work output to work input |