Across
- 3. A spiral wrapped around an inclined plane
- 5. Halfs the weight of the load
- 6. The center of a simple machine
- 8. The middle part of a wheel
- 11. The force put into something
Down
- 1. A round figure with an axle in the middle
- 2. A slope or wedge
- 4. Screws onto a bolt
- 7. The material on the simple machine
- 9. Has three classes
- 10. A screw without the pointy edge