Across
- 4. Force times distance
- 5. Staircase or doorstop
- 7. A machine that includes 2 or more simple machines
- 9. How many types of levers are there?
Down
- 1. something that makes work easier
- 2. A seesaw,hockey stick,wheel barrow
- 3. An inclined plane that turns around a central point
- 4. Axe Blade or knife
- 6. Wishing well or flagpole
- 8. Fr/Fe