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5 Written questions

5 Matching questions

  1. frequency
  2. reflection
  3. medium
  4. trough
  5. wave
  1. a a disturbance that transfers energy from one place to another
  2. b 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. c any substance that a wave moves through
  4. d the bouncing back of a wave as it strikes a barrier
  5. e
    lowest point (valley) of a wave

5 Multiple choice questions


  1. highest point (peak) of a wave
  2. mirror (light waves), echo (sound waves), RADAR (radio waves)
  3. 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)

  4. the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.)
  5. when waves cancel each other out

5 True/False questions

  1. constructive interferencewhen waves cancel each other out

          

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

          

  3. Examples of EM WavesSound, ocean waves, earthquakes

          

  4. Examples of mechanical wavesSound, ocean waves, earthquakes

          

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