Physics crossword

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Across
  1. 3. How to tell if something is in motion
  2. 7. A increase in speed
  3. 10. An object with more mass needs mor force to accelerate faster
  4. 11. Forces that resist motion
  5. 12. Speed with a given direction
  6. 13. A measurement of the amount of matter something contains
  7. 14. A push or pull
  8. 15. A unit of force to measure how much there is
  9. 16. How fast you go in a certain time and direction
Down
  1. 1. The resistance that one object encounters while moving on another object
  2. 2. A combination of different forces
  3. 4. Action/Reaction
  4. 5. When you slam on brakes and you keep moving foward
  5. 6. An action of something or someone moving in any way
  6. 8. Equal forces acting one object in opposite directions
  7. 9. A force that causes an object to move