Chapter 8 Vocabulary

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Across
  1. 3. is a double incline plane that moves
  2. 5. A simple machine consisting of a grooved wheel that holds a rope or cable
  3. 6. occurs when a force causes an object to move in the direction of the force
  4. 8. work output divided by work input times 100
  5. 10. simple machine consisting of two circular objects of different sizes
  6. 14. The work done by the machine
  7. 15. do you use to express power is joules per second which is more simply called
  8. 16. is a comparison of the machines work output with the work input
  9. 20. tells you how many times the machine multiplies force
  10. 21. work= force x distance
Down
  1. 1. MA= output force/input force
  2. 2. power= work/time
  3. 4. The rate at which work is done
  4. 7. incline plane that is wrapped in a spiral
  5. 9. A Device that helps make work easier by changing the size or direction of force
  6. 11. A simple machine consisting of a bar that pivots at a fixed point
  7. 12. another name for lever
  8. 13. The unit used to express work is the newton meter which is more simply called
  9. 17. Machines of two or more simple machines
  10. 18. hey simple machine that is a straight slanted surface
  11. 19. The work you do on a machine