puzzle ting

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Across
  1. 5. the acceleration of gravity
  2. 6. Third Law. equal and opposite forces acting upon each other
  3. 7. shows the net force of objects in a square
  4. 12. what Darth vader uses to choke people
  5. 14. famous scientist who came up with the three laws of motion
  6. 15. the great size or extent of something.
  7. 16. used to measure acceleration of gravity
  8. 17. above zero
  9. 18. type of Force
  10. 21. per second squared
  11. 22. Second Law. f=ma
Down
  1. 1. gravity and normal force acting on each other is an example of
  2. 2. a force acting on on other in the opposite direction
  3. 3. left, right, up, down
  4. 4. what makes an object fall from gravity
  5. 5. below zero
  6. 8. the speed of an object in motion
  7. 9. a force pulling down in all places of the earth
  8. 10. what keeps you from falling into the earth by the gravitational pull
  9. 11. an object in motion stays in motion, an object at rest stays at rest unless an outside force acts upon
  10. 13. what objects are in when acted on by an outside force
  11. 19. expression of newtons second law
  12. 20. speed of an object