vocabulary review

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Across
  1. 2. force that resists relative motion between two surfaces in contact.
  2. 4. the change in position of an object
  3. 9. action and reaction forces
  4. 10. its magnitude and by the direction in which it acts.
  5. 11. the oppose force that would cause change
  6. 13. a quantity that has both magnitude and direction
  7. 14. change in the amount of momentum
  8. 15. the measure of the amount of matter in a body.
Down
  1. 1. object projected by external force
  2. 3. pushing and pulling forces actually on one object
  3. 5. quantities that are described only by a magnitude
  4. 6. The rate of change of position of an object in any direction
  5. 7. force which pulls an object toward the ground
  6. 8. is the mass in motion
  7. 12. the rate of change of velocity