Unit 4 Vocab

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Across
  1. 4. The ________ of a machine is the output force multiplied by the output distance. It is the work exerted by the machine.
  2. 5. James Watt was looking for a way to compare the power outputs of steam engines he had designed. He came up with ____ as another unit of power that is equal to 746 watts.
  3. 8. The SI unit for power is ____ which is equal to 1 joule per second.
  4. 11. Unit for force
  5. 12. the force exerted by a machine
  6. 14. Unit for time
  7. 16. the mechanical advantage determined by measuring the actual forces acting on a machine, including friction
  8. 17. the force exerted on a machine
  9. 18. the distance the input force acts through
  10. 19. The percentage of the work input that becomes work output is
Down
  1. 1. The _______ equals the input force multiplied by the input distance. It is the work applied to the machine.
  2. 2. A device that makes work easier and changes a force
  3. 3. The SI unit for work is ____ which is equal to 1 Newton-meter.
  4. 6. the distance the output force is exerted through
  5. 7. Unit for distance
  6. 9. The rate at which work is done is ____.
  7. 10. If there is no movement, then there is no ____ done because it is the product of force and distance.
  8. 13. The number of times a machine increases a force exerted on it is its
  9. 15. ________ of a machine is the mechanical advantage in the absence of friction found by dividing input distance by output distance.