Machines

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Across
  1. 2. a simple machine that has a grooved wheel that holds a rope or a cable.
  2. 6. a simple machine that is a straight slanted surface.
  3. 7. The fixed point on a lever.
  4. 8. the number of times the machine multiplies the input force
Down
  1. 1. a comparison of a machine's work output with the work input
  2. 3. a simple machine that has a bar that pivots at a fixed point.
  3. 4. any device that helps people do work by changing the way work is done.
  4. 5. a simple machine that is made of a wheel connected to a smaller cylindrical object.