| A | B |
|---|
| compound machine | machine that is made of two or more simple machines |
| effort | the force used on a machine |
| load | the object that is moved by a machine |
| lever | simple machine made of an arm, or a bar, that turns about a point |
| fulcrum | the point about which the arm of a lever turns is a fulcrum |
| force | a push or pull on an object |
| simple machine | a device that changes the size or direction of a force |
| wheel and axle | a simple machine made of a wheel joined to a center post |
| gear | a special type of wheel and axle |
| inclined plane | a simple machine with a slanted surface |
