Simple machines

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Across
  1. 3. a sloping surface that reduces the force required to move objects up or down
  2. 4. a sloping surface that reduces the force required to move objects up or down
  3. 5. an inclined plane wrapped around a cylinder or post with a spiral shaft
Down
  1. 1. consists of a larger wheel attached to a smaller axle, making it easier to move objects or change their direction
  2. 2. a wheel with a groove that changes the direction of force and helps in lifting heavy objects
  3. 6. a sharp edged tool used for splitting, cutting, or holding objects together