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5 Written questions

5 Matching questions

  1. Waves caused by vibrations of atoms
  2. diffraction examples
  3. 2 relationships for waves
  4. destructive interference
  5. frequency
  1. a light will bend around a lampshade; sounds can be heard even if you are hiding behind something
  2. b when waves cancel each other out
  3. c 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. 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 Infrared

5 Multiple choice questions

  1. when waves combine to a larger amplitude
  2. mirror (light waves), echo (sound waves), RADAR (radio waves)
  3. Radio, infrared (IR), light
  4. any substance that a wave moves through

  5. for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough

5 True/False questions

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


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


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


  4. interferencethe meeting and combining of waves


  5. Examples of mechanical wavesSound, ocean waves, earthquakes


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