Across
- 7. a series intermeshing gears
- 8. a pulley system that has two wheels thar are connected THREE WORDS
- 9. a simple machine used to push things apart
- 13. a wheel with teeth along its edge
- 14. a lever that has the load between the fulcrum and the effort TWO WORDS
- 15. a bar that goes and down over a point
- 17. A flat surface whose ends are at different heights TWO WORDS
- 18. a lever that has the fulcrum between the load and the effort TWO WORDS
- 20. a belt that turns more than one wheel TWO WORDS
Down
- 1. a lever that has the effort between the fulcrum and the load TWO WORDS
- 2. a pulley system that uses one wheel THREE WORDS
- 3. a combination of different simple machines working together TWO WORDS
- 4. a flat surface TWO WORDS
- 5. a machine consisting of one or more pulleys and a wide flat belt TWO WORDS
- 6. the point that a lever goes over
- 10. any device that changes the amount of force you have to use to get something done
- 11. a simple machine that lets you pull down a rope, chain, or wire to lift something
- 12. an inclined plane wrapped around a cylinder or cone
- 16. usually a circular band made of rubber
- 19. a rigid bar that's inserted through a hole in a wheel