physics

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Across
  1. 1. Amount of matter in an object
  2. 3. Push or pull acting on an object
  3. 5. Force per unit area
  4. 6. Maximum displacement of a wave
  5. 7. Resistance to change in motion
  6. 8. Capacity to do work
  7. 10. Force opposing motion between surfaces
  8. 14. Rotational equivalent of force
  9. 15. Speed with a direction
  10. 17. Electric potential difference
  11. 18. Disturbance that transfers energy
  12. 19. Flow of electric charge
Down
  1. 2. Rate of change of velocity
  2. 4. Bending of light when it changes medium
  3. 9. Attraction between objects with mass
  4. 11. Opposition to current in a circuit
  5. 12. Number of wave cycles per second
  6. 13. Mass times velocity
  7. 16. Rate at which work is done
  8. 18. Force applied over a distance