| A | B |
|---|
| machine | device that makes work easier |
| wheel and axle | two different sized wheels that turn together around the same point |
| effort force | force applied to a machine |
| resistance force | force that opposes the effort force |
| mechanical advantage | number of times a machine multiples the effort force |
| ideal mechanical advantage | mechanical advantage a machine would have with no friction |
| lever | bar that is free to turn around a fixed point |
| fulcrum | fixed point around which a lever pivots or turns |
| Pulley | rope wrapped around a wheel |
| inclined plane | slanted surface or ramp |
| compound machine | machine that combines two simple machines or more |
