Across
- 5. inclined plane wrapped around a central cylinder
- 6. make work easier
- 9. force all machines lose work to
- 10. if the machine only changes direction, the mechanical advantage is equal to _____.
- 12. force you exert
- 16. when a force moves an object in the direction of the force
- 17. sloped surface
- 18. grooved wheel with a rope wrapped around it
- 20. if output force is greater than the input force the mechanical advantage is ____ than one
- 21. if output force is less than the input force the mechanical advantage is ____ than one.
Down
- 1. rigid bar
- 2. force machine exerts
- 3. number of times machine multiplies force
- 4. bicycle wheel
- 7. 2 or more simple machines
- 8. fixed point about which a lever pivots around
- 11. compares output work to input work - expressed as a percentage
- 13. machine that is thick on one end, thin on the other (knife)
- 14. how fast work is done
- 15. unit of work
- 19. unit of power