Six simple machines puzzle!

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Across
  1. 3. an amount of length traveled
  2. 7. When an object it force for a distance
  3. 8. Provides mechanical advantage by rolling around a point.
  4. 13. Uses a fulcrum and rod to make the lifting of the load easier or harder whether it is close or far.
  5. 15. the help that the simple machinese provide.
  6. 16. Uses strings over a rotating wheel to provide mechanical advantage.
Down
  1. 1. a push or pull on an object
  2. 2. the abbreviation for mechanical advantage
  3. 4. makes work much easier by being able to push a load.
  4. 5. Rather than having a tall/short ramp you would want a.
  5. 6. The rod combained to the wheel to let it rotate
  6. 9. the ridges on the screw to make it go down
  7. 10. This and inclined plain are very simalar
  8. 11. is shard and considered a wedge
  9. 12. Seperating two objects and propelling them apart.
  10. 14. Turns horizontal work into vertical work by spinning into something