Physics

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Across
  1. 3. When waves moving around objects
  2. 4. Measure of how high or low something is
  3. 5. The number of waves that passes a certain point in a certain amount of time
  4. 6. The substance in which the wave travels
  5. 7. The highest point of a wave
  6. 8. The distance between to crest of a wave
Down
  1. 1. When two waves are in phase and join together
  2. 2. An increase or decrease of the frequency of waves as an object moves closer or further from an observer