Unit 2: Waves

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Across
  1. 2. , A wave that does not require a medium and can travel through empty space. Examples include light waves and radio waves. EM for short
  2. 5. , When dust particles and gases in the atmosphere reflect light in all directions.
  3. 8. ,A wave that needs a medium to travel. Examples include sound waves and seismic waves.
  4. 10. , The number of complete wavelengths that pass a certain point in a given time.
  5. 11. , The lowest point of a transverse wave.
  6. 12. , Another name for EM waves.
  7. 13. , Something that does not allow any light to pass through.
  8. 14. , When a wave bounces off a surface that it cannot pass through.
  9. 16. , The distance from one crest to the next crest or from one trough to the next trough.
  10. 17. , The denser, less spread-out part of a mechanical wave.
  11. 19. , Another name for Mechanical waves
Down
  1. 1. , The less dense, more spread-out part of a mechanical wave.
  2. 3. , The height of a wave from the midline to the crest or the midline to the trough.
  3. 4. , Any material through which a wave can travel.
  4. 6. , Something that allows some light to pass through but not all.
  5. 7. , The bending of waves caused by a change in wave speed.
  6. 9. , The transfer of energy by a wave into the medium through which it travels. Opposite of reflection.
  7. 11. , Something that allows all light to pass through
  8. 15. , The highest point of a transverse wave.
  9. 18. , A disturbance that moves energy from one place to another.