simple machines

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Across
  1. 1. small rod that holds things together
  2. 4. lifts a object using a board of bar
  3. 6. has a wheel with a rope,belt or cable
  4. 7. connects a lower surface to a higher surface
  5. 9. the ratio to input force
  6. 10. has at least one slanted side
Down
  1. 2. connects items so objects can move
  2. 3. used to modify motion
  3. 5. lever the fulcrum is located between the two forces
  4. 8. advantage of a prefect machine