Describing motion

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Across
  1. 2. distance an object travels per unit of time
  2. 3. speed distance divided by time
  3. 6. Speed at a specific instant of time
  4. 7. point starting point you choose to describe the location or position of an object
  5. 9. speed and direction of a moving object
  6. 10. speed rate of change of position in which the same discance is traveled each second
  7. 11. an objects distance and direction
Down
  1. 1. diffrence between initial position
  2. 4. measure of the change in velocity during a period of time
  3. 5. Distance or length measured in one direction
  4. 8. process of changing position