Physics terms

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Across
  1. 3. another word meaning balance
  2. 7. a machine that moves a load through a great distance with little effort is a ______ multplier
  3. 8. the ability to do work
  4. 9. output/input x100
  5. 10. a grooved wheel on an axle
  6. 13. unit of electricity
  7. 14. the distance between the effort and the fulcrum
  8. 16. the object being moved
  9. 17. in the middle of a first class lever
  10. 18. in the middle of a third class lever
  11. 20. unit of energy
Down
  1. 1. there are three classes of this simple machine
  2. 2. a force ______ moves a large load with little effort
  3. 4. a simple machine with no moving parts
  4. 5. a pulley that rises and falls as the load moves
  5. 6. a push or a pull
  6. 10. effort applied to a machine
  7. 11. another term that means heat energy
  8. 12. the distance between the load and fulcrum
  9. 15. the product of effort over a distance
  10. 19. a pulley that does not rise and fall as the load moves
  11. 21. number of movements in a simple machine