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5 Written questions

5 Matching questions

  1. reflection
  2. diffraction examples
  3. Waves caused by vibrations of atoms
  4. wave
  5. diffraction
  1. a a disturbance that transfers energy from one place to another
  2. b light will bend around a lampshade; sounds can be heard even if you are hiding behind something
  3. c the bouncing back of a wave as it strikes a barrier
  4. d the spreading out of waves through an opening or around the edges of an obstacle
  5. e Infrared

5 Multiple choice questions

  1. 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. 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. the bending of a wave as it enters a new medium at an angle other than 90 degrees
  4. Sound, ocean waves, earthquakes
  5. electromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium - DOES NOT REQUIRE A MEDIUM)

5 True/False questions

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

          

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

          

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

          

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

          

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