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5 Written questions

5 Matching questions

  1. Examples of mechanical waves
  2. EM Wave
  3. diffraction
  4. diffraction examples
  5. medium
  1. a Sound, ocean waves, earthquakes
  2. b light will bend around a lampshade; sounds can be heard even if you are hiding behind something
  3. c electromagnetic wave; moves energy through space (sometimes empty space, sometimes through a medium - DOES NOT REQUIRE A MEDIUM)
  4. d any substance that a wave moves through
  5. e the spreading out of waves through an opening or around the edges of an obstacle

5 Multiple choice questions

  1. 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)

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

  3. the distance from one wave crest to the very next crest. (This may also be measured from trough to trough.)
  4. 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. when waves cancel each other out

5 True/False questions

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

          

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

          

  3. constructive interferencewhen waves combine to a larger amplitude

          

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

          

  5. Examples of EM WavesSound, ocean waves, earthquakes