Motion

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Across
  1. 3. Equal forces acting on an object in opposite directions
  2. 5. A force that moves rocks and other materials downhill.
  3. 10. The combination of all forces acting on an object
  4. 11. Resistance to change in motion
  5. 12. A force that opposes motion between two surfaces that are in contact
  6. 13. Moving at a steady rate over time
  7. 15. A push or a pull
  8. 16. Speed that changes over time.
Down
  1. 1. The rate at which velocity changes
  2. 2. A measure of how much matter is in an object
  3. 4. The overall rate of speed at which an object moves; (total distance / total time)
  4. 6. Forces that can cause change in motion
  5. 7. Distance and time
  6. 8. An object's change in position relative to a reference point.
  7. 9. Speed in a given direction
  8. 14. A place or object used for comparison to determine if an object is in motion