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5 Written questions

5 Matching questions

  1. medium
  2. diffraction
  3. Examples of mechanical waves
  4. refraction examples
  5. mechanical wave
  1. a the spreading out of waves through an opening or around the edges of an obstacle
  2. b Sound, ocean waves, earthquakes
  3. c waves that transfer energy through matter
  4. d any substance that a wave moves through
  5. e a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)

5 Multiple choice questions

  1. when waves cancel each other out

  2. lowest point (valley) of a wave

  3. highest point (peak) of a wave
  4. a disturbance that transfers energy from one place to another
  5. light will bend around a lampshade; sounds can be heard even if you are hiding behind something

5 True/False questions

  1. Examples of EM WavesSound, ocean waves, earthquakes


  2. amplitudeany substance that a wave moves through


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


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


  5. 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