| A | B |
|---|
| What is work? | done when a force changes the motion of an object |
| simple machine | has few or no moving parts |
| screw | an inclined plane formed into a spiral |
| lever | a straight bar that moves on a fixed point |
| energy | the ability to do work |
| compound machine | 2 or more simple machines |
| inclined plane | a flat surface that is higher at one end |
| pulley | uses a wheel and a rope to lift a load |
| wheel and axle | a wheel and a post or rod |
| machine | a tool that makes work easier |
| wheel and axle | part of a toy car |
| ax | used as a wedge |
| stored energy | energy that is ready to be used |
| scissors - simple or compound? | compound |
| wheel and axle | what is used to fly a kite |
| spiral path | easier up a hill - straight up or spiral? |
| wedge | which machine for a ship through water |
| inclined plane | which machine for loading a race car into a semi |
| inclined plane | why does a bike travel down a hill easily |
| lever, gear, wheel and axle | name a machine on a bike |
