Work, Power, and Simple Machines

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Across
  1. 5. When a fixed pulley and a movable pulley are used together, the pulley system is called a
  2. 8. a comparison of a machine’s work output with the work
  3. 12. a simple machine consisting of a grooved wheel that holds a rope or cable
  4. 13. occurs when a force causes an object to move in the direction of the force
  5. 14. a device that helps make work easier by changing the size or direction of a force
  6. 18. Unit for power
  7. 19. a simple machine consisting of two circular objects of different sizes
  8. 20. Work output can _____ be greater than work input
Down
  1. 1. are made of two or more simple machine
  2. 2. the work done by the machine
  3. 3. tells you how many times the machine multiplies force
  4. 4. Work divied by time
  5. 6. a simple machine consisting of a bar that pivots at a fixed point, called a fulcrum
  6. 7. an inclined plane that is wrapped in a spiral
  7. 9. Work Equals
  8. 10. a simple machine that is a straight slanted surface – a ramp
  9. 11. a double-inclined plane that moves
  10. 15. the rate at which work is done
  11. 16. the work you do on a machine
  12. 17. Unit for work