Waves

1234567891011121314151617181920
Across
  1. 4. Light can pass through, yet not entirely clear
  2. 6. Spectrum An ordered list of all types of electromagnetic radiation
  3. 10. Matter in which waves travel in
  4. 11. Coils are stretched apart
  5. 13. Wave bounces off when it hits a hard boundary
  6. 15. Part of a wave bends around a corner
  7. 18. Top of a wave
  8. 19. Waves energy dies off in soft material
  9. 20. Distance of two identical points
Down
  1. 1. Distance from rest to crest
  2. 2. Waves travel parallel
  3. 3. When two waves overlapped and interact
  4. 5. Light can pass through clearly
  5. 7. Coils are squeezed together
  6. 8. Waves travel perpendicular
  7. 9. The number of waves that pass a given point
  8. 12. Light can not pass in
  9. 14. Bottom of a wave
  10. 16. Wave bends when entering a transparent boundary
  11. 17. Shift Siren drives by, its pitch changes