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5 Written questions

5 Matching questions

  1. Examples of EM Waves
  2. EM Wave
  3. amplitude
  4. frequency
  5. wave
  1. a 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
  2. b Radio, infrared (IR), light
  3. c electromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium)
  4. d a disturbance that transfers energy from one place to another
  5. e
    for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough

5 Multiple choice questions

  1. waves that transfer energy through matter
  2. the meeting and combining of waves
  3. any substance that a wave moves through
  4. mirror (light waves), echo (sound waves), RADAR (radio waves)
  5. when waves cancel each other out

5 True/False questions

  1. trough
    lowest point (valley) of a wave


  2. crest
    highest point (peak) of a wave


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


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


  5. 2 relationships for waves1) 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)


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