Energy Crossword Puzzle

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Across
  1. 4. Newton's 2nd of motion
  2. 6. force when two forces are acting the same direction
  3. 7. increase of the rate and or speed of something
  4. 9. a push or pull
  5. 10. a unit of force
Down
  1. 1. the resistance an object encounters when moving next to another object
  2. 2. Newton's 3rd law of motion
  3. 3. when two forces are acting the opposite directions
  4. 5. sum of all forces acting on a object
  5. 8. the resistance of and object to any change in its motion