Forces

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Across
  1. 3. the product of an object's mass and velocity
  2. 6. the force that pulls objects toward each other
  3. 9. when an object creates friction by rolling over another object
  4. 12. when an object creates friction by sliding over another object
  5. 13. the combination of all forces acting on an object
Down
  1. 1. the strength of a force measured in the SI unit
  2. 2. two opposite forces acting on each other
  3. 4. equal forces acting on an object in opposite directions
  4. 5. when an object exerts friction by not moving
  5. 7. speed in a given direction
  6. 8. the rate at which velocity changes
  7. 10. a push or pull
  8. 11. friction that occurs when an object moves through a liquid
  9. 14. the force that one surface exerts on another when they rub against each other