Crossword

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Across
  1. 3. force of attraction between things that have mass
  2. 4. matters resistance to change in motion
  3. 5. the combination of all the forces acting on an object
  4. 6. the distance that something travels in a certain amount of time
  5. 8. created famous laws of motion
  6. 10. when two forces acting on an object are not equal in size
  7. 11. a push or pull
  8. 12. is known for the theory of relativity
Down
  1. 1. the rate that velocity changes with time
  2. 2. has a net force of zero
  3. 7. mass * velocity
  4. 9. speed in a certain direction