Physics

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Across
  1. 2. science that studies matter, energy, and how they interact
  2. 5. hands rubbing together
  3. 7. a force that acts on an object without physical contact
  4. 9. opposite of gravity
  5. 10. push or pull
  6. 12. center directed force
  7. 13. Moving through air
  8. 14. object at rest stays in rest
  9. 16. every action=opposite reaction
  10. 19. earth pulling down
  11. 20. when two objects are in direct physical contact
Down
  1. 1. man who came up with 3 laws
  2. 3. directed toward center of circle
  3. 4. f=ma
  4. 6. tendency of an object to resist a change in its state of motion
  5. 8. a push or pull
  6. 11. time it takes to complete lap
  7. 15. stay in place
  8. 17. moving
  9. 18. the action or process of moving or being moved.