| A | B |
| pulley | A simple machine made of a wheel with a line around it |
| screw | A simple machine made of a post with an inclined plane wrapped around it |
| simple machine | A machine with few or no moving parts that you apply just one force to |
| lever | A simple machine made of a bar that pivots on a fixed point |
| wedge | A simple machine made of two inclined planes placed back to back |
| work | The use of force to move an object over a distance |
| wheel and axle | A simple machine made of a wheel and an axle that turn together |
| inclined plane | A simple machine that is a slanted surface |
| fulcrum | The fixed point on a lever |