PHYSICS PUZZLE

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Across
  1. 2. the force by which a planet or other body draws objects toward its center
  2. 4. the change of momentum of an object when the object is acted upon by a force for an interval of time
  3. 6. the rate at which someone or something is able to move or operate
  4. 9. having only magnitude, not direction
  5. 10. a measurement of speed in a certain direction of motion
  6. 13. a vehicle's capacity to gain speed within a short time
  7. 14. the product of the mass and velocity of an object
Down
  1. 1. the moving of something from its place or position
  2. 3. an arrow connecting an initial point A with a terminal point B
  3. 5. the total force acting on an object
  4. 7. strength or energy as an attribute of physical action or movement
  5. 8. force that resists the sliding or rolling of one solid object over another
  6. 11. the natural tendency of objects in motion to stay in motion
  7. 12. a coherent, typically large body of matter with no definite shape