Simple Machines

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Across
  1. 4. an inclined plane wrapped in a spiral around a cylindrical post
  2. 6. an inclined plane with one or two sloping sides
  3. 8. A sloping surface and the IMA=l/h
  4. 9. consists of two wheels of different sizes with interlocking teeth along their circumferences
  5. 10. a bar that is free to pivot about a fixed point.
Down
  1. 1. the number of times a machine multiplies the effort force.
  2. 2. when two or more simple machines are used together.
  3. 3. A machine consisting of two wheels of different sizes that rotate together.
  4. 5. A machine that does work with one movement.
  5. 7. a grooved wheel with a rope, chain, or cable running along the groove.