Chapter 14 Vocabulary

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Across
  1. 4. the percentage of work input that becomes work output
  2. 7. slanted surface along which a force moves an object to a different evaluation
  3. 9. distance the output force is exerted through
  4. 11. arm distance between the output force and fulcrum
  5. 13. a device that changes a force
  6. 15. Equal to the ratio of the output force to the input force
  7. 18. arm distance between the input force and fulcrum
  8. 19. product of force and distance
  9. 21. Work done by the input force acting through the input distance
  10. 23. The SI unit of work
  11. 24. a rigid bar that is free to move around a fixed point
  12. 25. the force you exert on a machine
  13. 26. Simple machine that consists of a rope that fits into a groove of a wheel
Down
  1. 1. simple machine that consists of two disks of cylinders
  2. 2. Inclined plane wrapped around a cylinder
  3. 3. the rate of doing work
  4. 5. the distance the input forces acts through
  5. 6. the fixed point the bar rotates around
  6. 8. mechanical advantage in the absence of friction
  7. 10. the number of times that the machine increases an input force
  8. 12. the force that is exerted by a machine
  9. 14. the SI unit of power
  10. 16. Combination of two or more simple machines that work together
  11. 17. output force multiplied by output distance
  12. 20. equal to about 746 watts
  13. 22. V-shaped object whose side are two inclined planes sloped toward each other