Friction and Motion Puzzle

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Across
  1. 5. the measure of the speed and the direction of a specific object
  2. 6. force The combination of all forces acting on an object.
  3. 10. measure of the gravitational pull
  4. 11. the act of something moving, a change in position.
  5. 12. an imaginary line around which an object rotates.
  6. 15. Third Law Every action has an equal and opposite reaction
  7. 17. a change in velocity
  8. 18. change of position that does not entail a change of location
  9. 19. moving from one position to another
  10. 20. the measure of an amount of atoms (matter) in something
Down
  1. 1. the force that attracts objects towards another object. On earth, gravity pulls us towards the center of the earth.
  2. 2. a push or a pull. Force is what causes motion.
  3. 3. uninterrupted in time and indefinitely long continuing
  4. 4. the space between two things
  5. 7. forces forces that do not cancel each other out when acting together on a single object
  6. 8. forces forces that cancel each other out when acting together on a single object
  7. 9. anything that has mass and takes up space.
  8. 13. the tendency of things to keep traveling in the same direction at the same speed, unless something stops them
  9. 14. a force that acts in an opposite direction to movement. The more friction something has, the harder it is to move.
  10. 16. the distance an object moved over the time in which the motion took place.