Across
- 3. a rod set on a fixed point that helps open things or push things up
- 5. a force that occurs when objects rub against each other
- 7. how fast an object is moving
- 8. plane an example of this simple machine is a ramp
- 9. used to push objects apart
- 11. a change in an object's position
Down
- 1. makes carrying heavy loads easier
- 2. the speed and direction of an object's motion
- 4. a push or pull on an object
- 6. uses a rope and a wheel to lift heavy objects
- 7. an example is a screw
- 10. pulls objects towards the Earth