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5 Written questions

5 Matching questions

  1. medium
  2. diffraction
  3. EM Wave
  4. mechanical wave
  5. crest
  1. a electromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium)
  2. b the spreading out of waves through an opening or around the edges of an obstacle
  3. c any substance that a wave moves through
  4. d
    highest point (peak) of a wave
  5. e waves that transfer energy through matter

5 Multiple choice questions

  1. mirror (light waves), echo (sound waves), RADAR (radio waves)
  2. the bending of a wave as it enters a new medium at an angle other than 90 degrees
  3. a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
  4. a disturbance that transfers energy from one place to another

  5. lowest point (valley) of a wave

5 True/False questions

  1. Examples of mechanical wavesSound, ocean waves, earthquakes


  2. diffraction exampleslight will bend around a lampshade; sounds can be heard even if you are hiding behind something


  3. frequency
    highest point (peak) of a wave


  4. interferencethe meeting and combining of waves


  5. constructive interferencewhen waves cancel each other out


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