Work, Power, & Machines Vocab Crossword

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Across
  1. 2. a device that changes a force, it makes work easier to do
  2. 4. the number of times that the machine increases an input force
  3. 7. the work done by the input force over the input distance, the work put into a machine
  4. 10. the distance the input force is exerted over
  5. 11. the work done by the output force over the output distance, the work that comes out of the machine
  6. 12. the product of force and distance, it is done when a force acts on an object in the direction the object move
  7. 16. an inclined plane wrapped around a cylinder
  8. 18. the distance the output force is exerted over
  9. 19. the rate of getting work done
  10. 20. two circular objects attached together about a common axis
  11. 21. the mechanical advantage in the absence of friction
  12. 22. a combination of two or more simple machines that operate together
Down
  1. 1. a slanted surface along which a force moves an object to a different elevation
  2. 3. a rigid bar that pivots/turns around a fixed point (fulcrum)
  3. 5. the actual forces acting on a machine, it equals the ratio of the output force to the input force
  4. 6. the units for work
  5. 8. the force put into a machine
  6. 9. the force that is put out by a machine
  7. 12. a V-shaped object with two sides that are two inclined planes sloped towards each other
  8. 13. the percentage of work input that becomes work output, is always less than 100%
  9. 14. a common unit of power equal to 746 watts, first based on the power output of a very strong horse
  10. 15. consists of a rope that fits into a groove in a wheel
  11. 17. the units for power