Science

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