force and motion

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Across
  1. 3. a force caused by two objects rubbing against each other
  2. 7. type of friction that occurs when air pushes against a moving object
  3. 9. famous for creating his three laws and discovering gravoty (last name)
  4. 10. a push or pull on an object
Down
  1. 1. a measure of how heavy an object is
  2. 2. the state of moving
  3. 4. the constant pull between all objects in the universe
  4. 5. amount of matter in an object
  5. 6. all forces on an object added together
  6. 8. a measure of how fast an object is going