physics

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Across
  1. 3. increase in the rate or speed of something
  2. 4. An object that is moving only because of the action of gravity
  3. 6. the speed of something in a given direction
  4. 7. The rate of change of position of an object in any direction
  5. 8. the interval over which change occurs
  6. 9. the change in position of an object
Down
  1. 1. a physical quantity that is completely described by its magnitude
  2. 2. a push or pull
  3. 5. the study of the motion
  4. 6. a quantity that has both magnitude and direction