Simple Machines

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Across
  1. 3. output force is between the fulcrum and input force
  2. 5. consists of and axle attached to the center of a larger wheel so that the wheel and axle rotate together
  3. 8. fulcrum is between the input force and output force
  4. 13. two or more simple machines that operate together
  5. 14. one end of the rope is fixed and the other is free to move
Down
  1. 1. system of fixed and movable pulleys
  2. 2. bar that is free to pivot around a fixed point
  3. 4. input force between the fulcrum and output force
  4. 6. grooved wheel with a rope, chain, or cable running along the groove
  5. 7. sloping surface, such as a ramp that reduces the amount of force required to do work
  6. 9. a fixed point
  7. 10. attached to something that doesn't move
  8. 11. an inclined plane with one or two sloping sides
  9. 12. inclined plane wrapped around cylindrical post