Chapter 14 Vocab

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Across
  1. 4. the ratio of the output force to the input force in a machine
  2. 6. the distance through which the input force acts in a machine
  3. 9. the percentage of the work input that becomes work output in a machine
  4. 11. a simple machine that consists of two rigidly attached disks or cylinders, each one with a different radius
  5. 12. the rate of doing work
  6. 13. the work done by a machine as the output force acts through the output distance
  7. 14. the product of distance and the force in the direction an object moves
  8. 15. the force exerted by a machine
  9. 16. the SI unit of power, equal to one joule per second
  10. 18. the fixed point a lever rotates around
  11. 22. the number of times that a machine increases an input force
  12. 24. the force exerted on a machine
  13. 25. the work done on a machine as the input force acts through the input distance
Down
  1. 1. the distance between the fulcrum in a lever and the output force
  2. 2. the mechanical advantage of a machine in the absence of friction
  3. 3. a V-shaped object whose sides are two inclined planes sloped toward each other
  4. 5. a slanted surface along which a force moves an object to a different elevation
  5. 7. a simple machine that consists of a rope that fits into a groove in a wheel
  6. 8. a common unit of power, equal to about 746 watts
  7. 10. the distance between the fulcrum in a lever and the input force
  8. 15. the distance an output force acts through in a machine
  9. 17. the SI unit of work, equal to 1 newton-meter
  10. 19. a rigid bar that is free to move around a fixed point
  11. 20. a device that changes a force
  12. 21. a combination of two or more simple machines that operate together
  13. 23. an inclined plane wrapped around a cylinder