Cross word

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Across
  1. 2. electromagnetic radiation that can be detected by the human eye
  2. 7. is a decrease in speed as the body moves away from the starting point
  3. 8. What is the force that prevents two solid objects from slipping or rolling over one another?
  4. 10. identical to the nucleus of a normal
  5. 13. is the branch of the movement that deals with the movement of objects
  6. 15. the maximum displacement
  7. 17. it forms energy that an object or a particle has by reason of its motion
  8. 18. its formula is v=d/t
  9. 19. on earth's surface is 9.8m/s
  10. 20. unit of electric current
  11. 22. is an elementary particle that is identical to the nucleus of the hydrogen atom
  12. 23. has one path only and are connected end-to-end
  13. 24. has vibrating particles
  14. 30. Smallest unit of matter
  15. 31. a closed loop through which charges can continuously move
  16. 32. the unit that measures energy
Down
  1. 1. its formula is d=vt+1/2at^2
  2. 3. first law of Newton's
  3. 4. device used to measure voltage
  4. 5. The push and pull objects acts upon
  5. 6. pleasing to the ear
  6. 9. is the spatial period of a periodic wave
  7. 11. the act or process of moving faster
  8. 12. general quantity or size
  9. 14. elementary particle with a negative charge
  10. 16. The capacity or power to do work
  11. 21. a quantity or aggregate of matter usually of considerable size
  12. 25. the spreading of waves around obstacles
  13. 26. its formula is p=mw
  14. 27. Device that converts chemical energy to electric energy
  15. 28. its formula is p=w/Delta t
  16. 29. has multiple paths