| A | B |
|---|
| simple machines | a machine with few parts |
| load | object being lifted or moved by a simple machine |
| gear | a wheel with teeth |
| inclined plane | a flat slanted surface |
| effort force | how much force used to move something |
| wedge | two inclined planes back to back |
| compound machine | machiine made up of two or more simple machines |
| efficiency | measure of how much useful work a machine puts out compared to the amount of work put into it |
| screw | an inclined plane twisted int a spiral |
| movable pulley | simple machine not attached to anything. In increases the force to move an object |
| lever | a bar that can turn or pivot on a fixed point called the fulcrum |
