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5 Written questions

5 Matching questions

  1. diffraction
  2. mechanical wave
  3. interference
  4. destructive interference
  5. refraction
  1. a waves that transfer energy through matter
  2. b the meeting and combining of waves
  3. c the spreading out of waves through an opening or around the edges of an obstacle
  4. d the bending of a wave as it enters a new medium at an angle other than 90 degrees
  5. e when waves cancel each other out

5 Multiple choice questions

  1. Infrared

  2. for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough
  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. when waves combine to a larger amplitude
  5. 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 True/False questions

  1. Examples of EM WavesRadio, infrared (IR), light


  2. diffraction examplesa straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)


  3. wavelengtha disturbance that transfers energy from one place to another


  4. EM Wavea disturbance that transfers energy from one place to another


  5. Examples of mechanical wavesRadio, infrared (IR), light


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