Across
- 4. A machine used for pulling or lifting
- 5. The pivot point of a lever
- 6. A shaft for rotating wheels
- 8. A sloped surface connecting different levels
- 10. A handle that is turned to move something
- 11. The part by which something is held
- 13. A piece of material driven between objects to split or hold them
- 14. A cylinder with a helical ridge
- 15. A circular object that turns on an axle
- 17. A wheel that guides a rope
Down
- 1. Plane A flat surface set at an angle
- 2. A bar that pivots on a fulcrum
- 3. A part of a pulley system
- 7. A tool for turning screws
- 9. A long, flat piece of wood
- 12. A rotating machine part with teeth
- 16. A tool for hitting nails