force work and energy

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Across
  1. 4. plane - slope
  2. 7. - ability to do work
  3. 8. - push or pull an object
  4. 9. energy - heat within the earth
  5. 10. cracker - second class lever
Down
  1. 1. - the resistance that one surface or object encounters when moving over another
  2. 2. - the person who discovered buoyant force
  3. 3. machine - machines which make work easier and faster
  4. 5. jack - used to lift heavy objects
  5. 6. force - upward push of water