Physics Crossword 3

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Across
  1. 2. bouncing back into same medium
  2. 4. interference where amplitudes are added, crests line up with crests
  3. 7. change in frequency due to source or observer motion
  4. 10. created by oscillations in electric and magnetic fields, can travel across a vacuum
  5. 12. angle of incidence = angle of reflection
  6. 14. interference where amplitudes are subtracted, crests line up with troughs
  7. 17. twisting of a wave around a barrier
  8. 20. electromagnetic, transverse wave
  9. 21. oscillations of wave in a single plane
  10. 22. height of wave, distance from equilibrium (direct with energy)
  11. 24. wave moves through matter
  12. 25. light wave can travel through medium
  13. 26. mechanical, longitudinal wave
Down
  1. 1. change of wave speed across medium (results in bending of wave)
  2. 3. vibrations are perpendicular to wave motion
  3. 5. vibrations are parallel to wave motion
  4. 6. seconds per oscillation/cycle (inverse with period)
  5. 8. related to light wave's frequency
  6. 9. distance between equivalent points like crest to crest (inverse with frequency)
  7. 11. ratio of speed of light in a vacuum to speed in a medium
  8. 13. related to sound wave's frequency
  9. 15. related to light wave's amplitude
  10. 16. difference between frequencies, waves are slightly out of sync
  11. 18. oscillations/cycles per second (inverse with period, inverse with wavelength)
  12. 19. light wave is reflected or absorbed by a medium
  13. 23. related to sound wave's amplitude