FORCES AND CHANGE IN MOTION

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Across
  1. 3. push or pull on an object
  2. 6. scientist who studied the motion of objects
  3. 8. to speed up
  4. 9. the process of changing position
  5. 11. forces acting that combine and form a net force that is not zero
  6. 13. a sudden movement in one direction
  7. 14. the sum of all forces
Down
  1. 1. an educated guess
  2. 2. a contact force that resists the sliding motion of two surfaces that are touching
  3. 4. forces acting that combine and form a net force of zero
  4. 5. to make a copy or repeat
  5. 7. the speed and direction of a moving object
  6. 9. the measurement of how much matter is in an object
  7. 10. acts to resist motion
  8. 12. ability to cause change