Force work and energy

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