Chapter 8 crossword Harrison

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Across
  1. 2. a device that helps make work easier
  2. 7. the work you do on a machine
  3. 9. tells you how many times the machine multiplies force
  4. 10. W=FxD
  5. 16. ME=work output/work input x 100
  6. 19. MA=output force/input force
  7. 20. P=W/T
  8. 21. a simple machine that is a straight slanted surface
Down
  1. 1. a simple machine consisting of two circular objects of different sizes
  2. 3. a double inclined plane that moves
  3. 4. a fixed point
  4. 5. the rate at which work is done
  5. 6. the work done by the machine
  6. 8. the unit for power
  7. 11. a comparison of a machines work output with the work input
  8. 12. a simple machine consisting of a grooved wheel that holds a rope or cable
  9. 13. an inclined plane wrapped in a spiral
  10. 14. a simple machine consisting of a bar that pivots at a fixed point
  11. 15. when a force causes an object to move in direction of the force
  12. 17. machines that are made of two or more simple machines
  13. 18. the unit for work