| A | B |
|---|
| gravity | the force that pulls two objects together |
| machine | something that makes a task easy by reducing the amount of force needed to do it |
| wheel and axle | a simple machine that is made up of two wheels that turn together |
| compound machine | a machine that is made up of two or more machines |
| force | a push or a pull |
| pulley | a wheel with a rope or a chain around it |
| lever | a bar that turns around a fixed point |
| inclined plane | a simple machine with a slanted surface |
| simple machine | a device that changes the size or direction of a force |
| fulcrum | a fixed point around which a lever turns |
