| A | B |
|---|
| power | the rate at which work is done |
| energy | the ability to do work |
| work | force x distance |
| force | a push or a pull |
| potential energy | stored energy resulting from the relative positions of objects in a system |
| kinetic energy | energy of motion |
| simple machine | one of the six basic types of machines of which all other machines are composed |
| compound machine | machine made of more than one simple machine |
| mechanical advantage | a quantity that measures how much a machine multiplies force or distance |
| efficiency | ratio of useful work output to work input |
