Across
- 5. bar resting on a pivot
- 7. rod or spindle passing through the center of a wheel
- 8. the point on which a lever rests
- 9. acts to change the direction of a force
Down
- 1. spiral threaded cylinder; used to join things together
- 2. uses wedges to push the two sides apart
- 3. something solid that can be pushed between 2 things
- 4. circular object that revolves on an axle to create movement
- 6. inclined plane
- 8. push or pull