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5 Written questions

5 Matching questions

  1. interference
  2. wave
  3. constructive interference
  4. medium
  5. destructive interference
  1. a a disturbance that transfers energy from one place to another
  2. b when waves cancel each other out
  3. c any substance that a wave moves through
  4. d when waves combine to a larger amplitude
  5. e the meeting and combining of waves

5 Multiple choice questions

  1. a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
  2. Sound, ocean waves, earthquakes

  3. for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough
  4. 1) speed and frequency = directly proportional
    (as speed goes up, frequency goes up)
    2) wavelength and frequency = inversely proportional
    (as wavelength gets longer, frequency goes down)

  5. the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.)

5 True/False questions

  1. refractionthe bouncing back of a wave as it strikes a barrier


  2. diffractionthe bending of a wave as it enters a new medium at an angle other than 90 degrees


  3. Examples of EM WavesRadio, infrared (IR), light


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


  5. mechanical wavewaves that transfer energy through matter


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