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5 Written questions

5 Matching questions

  1. wavelength
  2. refraction examples
  3. destructive interference
  4. Examples of mechanical waves
  5. reflection
  1. a a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
  2. b
    the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.)
  3. c Sound, ocean waves, earthquakes
  4. d the bouncing back of a wave as it strikes a barrier
  5. e when waves cancel each other out

5 Multiple choice questions

  1. electromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium)
  2. a disturbance that transfers energy from one place to another

  3. lowest point (valley) of a wave
  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. when waves combine to a larger amplitude

5 True/False questions

  1. amplitudeany substance that a wave moves through

          

  2. frequency
    lowest point (valley) of a wave

          

  3. crest
    lowest point (valley) of a wave

          

  4. interferencethe meeting and combining of waves

          

  5. diffractionthe spreading out of waves through an opening or around the edges of an obstacle

          

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