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5 Written questions

5 Matching questions

  1. refraction
  2. mechanical wave
  3. destructive interference
  4. constructive interference
  5. refraction examples
  1. a waves that transfer energy through matter
  2. b a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
  3. c when waves combine to a larger amplitude
  4. d when waves cancel each other out
  5. e the bending of a wave as it enters a new medium at an angle other than 90 degrees

5 Multiple choice questions

  1. the bouncing back of a wave as it strikes a barrier
  2. 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)

  3. for transverse waves: the distance between the resting point (or equilibrium) to the crest or trough
  4. Radio, infrared (IR), light
  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 mechanical wavesRadio, infrared (IR), light

          

  2. EM Waveelectromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium - DOES NOT REQUIRE A MEDIUM)

          

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

          

  4. reflection examplesmirror (light waves), echo (sound waves), RADAR (radio waves)

          

  5. wavea disturbance that transfers energy from one place to another