Force and Motion

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Across
  1. 1. The force that pulls objects towards each other as a result of their masses
  2. 4. A place or object used for comparison to determine whether something is in motion.
  3. 5. The combination of all forces acting on an object.
  4. 6. A quantity whose value can change.
  5. 9. A push or pull
  6. 10. The interval over which changes occur
  7. 11. An object at rest will remain at rest unless acted upon by a force.
  8. 12. When one force is greater than another.
  9. 14. When the forces on an object are equal and in opposite directions.
  10. 16. The speed at which an object travels in a given direction
  11. 19. The rubbing of one thing against another
  12. 20. The size and direction of a net force equals the mass times acceleration.
Down
  1. 2. The resistance to change in motion
  2. 3. The angle of a line in a graph
  3. 7. The rate at which velocity changes
  4. 8. The amount of space between two things, points, lines, etc.
  5. 13. The distance at which an object moves per unit of time
  6. 15. The action or process of moving or being moved
  7. 17. If one object exerts a force on another object, then the second object exerts a force of equal strength in opposite direction on the first object.
  8. 18. The unit of strength of a force.