physics :)

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Across
  1. 3. The principle stating that energy cannot be created or destroyed
  2. 6. The distance traveled per unit time
  3. 8. The speed of light in a vacuum
  4. 10. The rate of doing work
  5. 14. The unit of electric current
  6. 15. A measure of how much matter is in an object
  7. 17. The change in velocity over time
  8. 19. The ability to do work
  9. 21. The product of mass and acceleration
  10. 24. The measure of the amount of substance
  11. 25. The total momentum before an event equals the total momentum after
Down
  1. 1. A particle with a positive charge found in the nucleus of an atom
  2. 2. The force that opposes the motion of two surfaces in contact
  3. 4. The measure of the average kinetic energy of particles in a substance
  4. 5. The rate of change of velocity
  5. 7. The study of heat transfer
  6. 9. The force per area unit
  7. 11. The law that describes the relationship between voltage, current, and resistance
  8. 12. The force of attraction between two masses
  9. 13. The resistance of a material to deformation
  10. 16. The specific path
  11. 17. The study of forces and their effects on motion
  12. 18. The energy stored in an object due to its position
  13. 20. The phenomenon where light bends as it passes from one medium to another
  14. 22. The point at which an object rotates
  15. 23. The unit of frequency