Chapter 8

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Across
  1. 2. simple machine that is a straight slanted plane
  2. 3. p=W/t
  3. 8. simple machine consisting a grooved wheel that holds a rope or cable
  4. 9. rate of which work is done
  5. 14. the work done by the machine
  6. 16. a simple machine consisting of 2 circular objects of different sizes
  7. 20. a simple machine that consists of a bar that pivots
  8. 21. work output/input x 100
Down
  1. 1. output force/input force
  2. 4. less work a machine has to do to overcome friction
  3. 5. a machine made of more that one simple machine
  4. 6. tells you how many times the machine multiplies force
  5. 7. When force causes an object to move in the direction of that force
  6. 10. w=Fxd
  7. 11. device that helps make work easier
  8. 12. work you do on a machine
  9. 13. Unit used to express work in Newton-meter
  10. 15. a double inclined plane that moves
  11. 17. incline plane that is wrapped in a spiral
  12. 18. a lever
  13. 19. unit used to express power in j/s