Descibing Motion Concept 3 Vocabulary

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Across
  1. 3. forces that are not equal in size and opposite in direction
  2. 7. mass in motion
  3. 8. the amount of matter in an object
  4. 9. friction between a rolling object and the surface it rolls on
  5. 11. push or pull one object exerts on another
  6. 13. friction between two surfaces that are sliding past each other
  7. 16. resistance an object feels when traveling through the air
  8. 17. every action has an equal and opposite reaction
Down
  1. 1. occurs when the force of gravity and air resistance become balanced
  2. 2. A net force acting on an object causes the object to accelerate in the direction of the net force
  3. 4. the combining of forces when two or more forces act on an object
  4. 5. an object will move at a constant velocity until a net force acts on it
  5. 6. friction between two surfaces that are not moving past each other
  6. 10. the attraction two objects have on one another
  7. 12. resistance to motion when two objects are in contact with one another
  8. 14. the tendency of an object to resist a change in motion
  9. 15. forces that are equal in size and opposite in direction
  10. 18. the force of gravity on an object