Across
- 3. one end of the rope is fixed and the wheel is free to move
- 6. two machines working together
- 7. 1st class lever
- 8. grove wheel with a rope running along grove
- 9. 2nd class lever
- 10. inclined plain with one or two sloping sides
Down
- 1. two or more simple machines that corporate together
- 2. inclined plain wrapped in a spiral around a cylindrical post
- 4. system of pulleys consisting of fixed and movable pulleys
- 5. 3rd class lever
- 9. attached to something that doesn't move