Simple machines

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Across
  1. 3. consists of a larger wheel attached to a smaller axle, making it easier to move objects or change their direction
  2. 4. refers to the ratio of the output force to the input force in a simple machine
  3. 6. a wheel with a groove that changes the direction of force and helps in lifting heavy objects
  4. 7. not a type of machine
  5. 9. not a simple machine
Down
  1. 1. reduces force to move objects up and down
  2. 2. has its own unique way of multiplying force or changing the direction of force
  3. 3. a sharp-edged tool used for splitting, cutting, or holding objects together
  4. 5. moves heavy loads with less effort
  5. 8. wrapped around a cylinder or post with a spiraled shaft