Forces puzzle

12345678910
Across
  1. 5. Slows things down when already moving
  2. 9. An object at rest will stay at rest until acted upon by an unbalanced force
  3. 10. when all forces acting on an object result in motion change
Down
  1. 1. a force in circular motion that pulls to the center of a circle
  2. 2. Has a density of one
  3. 3. M/V
  4. 4. a force that resists an objects motion
  5. 6. A force that pulls objects towards each other
  6. 7. Action Reaction
  7. 8. the sum of all forces acting on an object