| A | B |
|---|
| six simple machines | lever, inclined plane, wedge, wheel and axle, screw, and pulley |
| lever | a stiff bar that moves about a fixed point (fulcrum) |
| inclined plane | flat surface that is raised so one end is higher than the other |
| wedge | wide at one end and pointed at the other to help cut or split other objects |
| wheel and axle | consists of a rod attached to a wheel |
| screw | an inclined plane wrapped around a cylinder or cone |
| pulley | a wheel that has a rope wrapped around it |
| compound machine | a combination of two or more simple machines |
