Simple Machines
Across
- 3. What is a ramp wrapped around a rod?
- 4. What's the distance between the threads of a screw?
- 5. Simple Machines change size and direction of ?
- 6. What type of simple machine is a catapult ?
- 7. A simple machine that rotates around a central fulcrum
- 9. These animals used to pulled trolley cars.
- 11. The part of a lever around which it moves
Down
- 1. What are wheels with teeth ?
- 2. These are a type of ramp
- 3. What type of staircase is like a screw?
- 8. With a pulley system you use more ?
- 10. What can change the direction of a force ?