8R science chapter 8 crossword vocab

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Across
  1. 4. a slanted straight surface at an inclined angle
  2. 6. tells you how many times the machine multiplies force
  3. 10. a double inclined plane
  4. 11. ME=work output/work input x 100
  5. 15. a grooved wheel holding a cable
  6. 17. a comparison of work input and work output
  7. 18. a bad pivoted at a fixed point
  8. 19. the work done by the machine
  9. 21. w=FxD
Down
  1. 1. two or more simple machines working together
  2. 2. a lever
  3. 3. MA=Output force/input force
  4. 5. the work you put in a machine
  5. 7. two circular objects of different sizes
  6. 8. force causes object to move
  7. 9. an inclined plane wrapped in a spiral
  8. 12. a device that makes work easier
  9. 13. Newton x meter
  10. 14. p=w/t
  11. 16. the unit for power used
  12. 20. the rate at which work is done