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5 Written questions

5 Matching questions

  1. wave
  2. diffraction examples
  3. Examples of EM Waves
  4. trough
  5. interference
  1. a Radio, infrared (IR), light
  2. b
    lowest point (valley) of a wave
  3. c a disturbance that transfers energy from one place to another
  4. d the meeting and combining of waves
  5. e light will bend around a lampshade; sounds can be heard even if you are hiding behind something

5 Multiple choice questions

  1. 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)
  2. the number of waves passing a fixed point in a certain amount of time; it is based partly on wavelength (longer wavelengths take a longer time to pass) and partly on the speed the wave travels
  3. any substance that a wave moves through
  4. when waves cancel each other out
  5. the bending of a wave as it enters a new medium at an angle other than 90 degrees

5 True/False questions

  1. reflection examplesa straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)


  2. EM Wavea disturbance that transfers energy from one place to another


  3. constructive interferencewhen waves combine to a larger amplitude


  4. crest
    highest point (peak) of a wave


  5. mechanical waveelectromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium)


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