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5 Written questions

5 Matching questions

  1. diffraction examples
  2. Boiling point of water in °C
  3. medium
  4. (distance vs. time) constant speed forward
  5. specific heat
  1. a light will bend around a lampshade; sounds can be heard even if you are hiding behind something
  2. b any substance that a wave moves through
  3. c The price you pay (in energy) to change the temperature of something.
  4. d 100°C
  5. e
    straight line, positive slope

5 Multiple choice questions

  1. a straw looks "broken" when you look at it in a glass of water (because the light bends when it enters the water)
  2. the AVERAGE kinetic energy of an object's particles due to non-directional motion at the atomic level

  3. straight line, slope = 0 (line is flat)
  4. speed and direction
  5. 373K

5 True/False questions

  1. frictionthe force that opposes motion between two surfaces that are touching


  2. refractionthe bouncing back of a wave as it strikes a barrier


  3. On a distance vs. time graph, constant velocity is represented byA straight line


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


  5. Negative velocityobject moving forward