Simple Machine

123456789
Across
  1. 3. push or pull action
  2. 5. one of the simple machines.
  3. 7. heel and axle, with ropes or chain.
  4. 8. a rod attached to the centre of the wheel.
  5. 9. a long stick that you push or pull to move something.
Down
  1. 1. causing by work
  2. 2. sloped flat surface with no moving parts.
  3. 4. to lift a heavy object by hand, we required a lot of
  4. 6. can be used to split things.
  5. 7. the amount of energy transferred per unit time.