Waves (by; nadera palmer

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Across
  1. 2. time span of a cycle
  2. 4. 2 rays meet, they overlap and interact
  3. 5. direction passing through one medium to another
  4. 7. top of wave
  5. 9. unit of frequency
  6. 11. substance transmitted or carried through
  7. 12. a force in which volume decreases
  8. 17. wave at rest, no disturbance
  9. 18. varying of light rays from a point
  10. 19. 2 or more waves of equal frequency and opposite phases
  11. 24. distance of wave
  12. 26. curved outward
  13. 27. impact of frequency
Down
  1. 1. direction of the wave changing
  2. 3. 2 r more waves of equal frequency and phases
  3. 6. wave that goes in same direction
  4. 8. electric and magnetic field
  5. 10. max displacement in a standing wave system
  6. 13. light rays that originate
  7. 14. curved inward
  8. 15. wave moving perpendicular of energy
  9. 16. waves bending
  10. 20. decreasing pressure in a medium
  11. 21. bottom of wave
  12. 22. point where size of vibration ina standing wave system is zero
  13. 23. number of periods
  14. 25. series of periodic waves