motion and forces

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Across
  1. 4. body's relative mass or the quantity of matter contained by it
  2. 9. The matter that makes up an object
  3. 10. The moving of something from its place or position
  4. 11. The speed of something in a given direction
  5. 13. The rate of change of position of an object in any direction
  6. 14. force Type of force that acts on an object without any physical contact
Down
  1. 1. speed The speed of an object at a specific moment in time
  2. 2. The resistance that one surface or object encounters when moving over another
  3. 3. The action or process of moving or being moved
  4. 5. The force that attracts a body toward the center of the earth, or toward physical body having mass
  5. 6. speed The total distance an object travels divided by the total time to travel that distance
  6. 7. a push or pull on an object that changes its motion or shape
  7. 8. increase in the rate or speed of something
  8. 12. force A physical force exerted by one object on another when the two objects are in direct contact