Simple Machines

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Across
  1. 2. Inclined plane wrapped in spiral around a cylinder post
  2. 4. Sloping surface that reduces the amount of force required to do work
  3. 6. The act of being moved
  4. 8. An inclined plane with on or two sloping slides
  5. 9. Grooved wheel with a rope, chain or cable running along groove
Down
  1. 1. Consists of an axle attached to center of a larger wheel so that the wheel and axle rotate together
  2. 3. Make everyday life easier
  3. 5. A push or pull on an object
  4. 7. Bar that is free to pivot around fixed point