Motion

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Across
  1. 2. How fast something is moving, calculated as distance divided by time
  2. 5. A quantity that only has size
  3. 7. The amount of matter in an object
  4. 11. The overall change in position, with direction
  5. 12. The state of an object when it is not moving
  6. 13. Speed at a specific moment in time
  7. 16. An object that is not moving
  8. 17. Speed with a direction
  9. 18. The acceleration of an object moving at constant speed
Down
  1. 1. Negative acceleration or slowing down
  2. 3. A quantity that has both size and direction
  3. 4. A word to describe motion at a constant speed
  4. 6. The rate of change of velocity
  5. 8. Total distance divided by total time
  6. 9. A push or pull that can change motion
  7. 10. How far an object travels, regardless of direction
  8. 14. On a distance-time graph, this shows speed
  9. 15. A measure of how long something takes