Work, Machines, and Energy

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Across
  1. 4. a comparison of a machine's work output with the work input
  2. 6. the amount of work an object can do because of the object's kinetic and potential energy
  3. 8. work done on a machine;product of the input force and the distance through which the force is exerted
  4. 11. done when a force causes an object to move in the direction of the force
  5. 15. a simple machine that has a bar that pivots on a point called the fulcrum
  6. 16. a simple machine consisting of two circular objects of different sizes
  7. 17. energy that an object has because of the position, shape, or condition of the object
Down
  1. 1. a device that makes work easier by changing the size or direction of the force
  2. 2. unit used to express energy
  3. 3. an inclined plane that is wrapped in a spiral around a cylinder
  4. 4. the number of times the machine multiplies force
  5. 5. machines that are made up of more than one simple machine
  6. 7. a simple machine that is a straight, slanted surface
  7. 8. a pair of inclined planes that move
  8. 9. energy of an object that is due to the object's motion
  9. 10. the rate at which energy is transferred
  10. 12. work done by the machine;the product of the output force and the distance through which it was exerted
  11. 13. a simple machine that has a grooved wheel that holds a rope or cable
  12. 14. the ability to do work
  13. 16. unit used to express power