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5 Written questions

5 Matching questions

  1. interference
  2. frequency
  3. wavelength
  4. reflection
  5. diffraction
  1. a
    the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.)
  2. b the spreading out of waves through an opening or around the edges of an obstacle
  3. c the bouncing back of a wave as it strikes a barrier
  4. d 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
  5. e the meeting and combining of waves

5 Multiple choice questions

  1. Radio, infrared (IR), light
  2. any substance that a wave moves through
  3. Sound, ocean waves, earthquakes
  4. a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
  5. the bending of a wave as it enters a new medium at an angle other than 90 degrees

5 True/False questions

  1. waveelectromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium - DOES NOT REQUIRE A MEDIUM)

          

  2. reflection examplesmirror (light waves), echo (sound waves), RADAR (radio waves)

          

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

          

  4. mechanical waveelectromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium - DOES NOT REQUIRE A MEDIUM)

          

  5. Waves caused by vibrations of atomsInfrared

          

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