Across
- 2. Force * Distance
- 3. A bar that pivots on the fulcrum
- 7. Force applied to an object by a person or another object
- 9. Egyptians used this machine to build pyramids
- 12. A combination of two or more simple machines made to do work
- 16. 7th simple machine that changes speed and direction
- 17. A pulley system that is made of both fixed and movable pulleys
- 18. Machine made of two wheels with different sizes
- 20. Something that does work easier
- 21. Unit of measurement for power
Down
- 1. A machine with no work is lost to friction
- 2. Work done by you on a machine
- 4. A number that tells how many times a machine multiplies work
- 5. Unit that measures work
- 6. Ratio of Output to Input work as a percentage
- 8. Fixed, Movable, Block and Tackle
- 10. Rate at which work is done
- 11. Force done by you onto the machine
- 13. Force that the machine does on an object
- 14. Machine made from two Inclined planes
- 15. Work done by machine on another object
- 19. Inclined plane around a cylinder