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6 Written questions

5 Multiple choice questions

  1. can be used in medicine, art, and engineering
  2. cause some material to glow and are used to find unsafe bacteria in food
  3. used to treat some kinds of cancer
  4. light bounces off this kind of surface in the opposite direction from which it came
  5. light bounces off this type of surface in all directions

5 True/False questions

  1. lensproduce a thin beam of light that is only one color


  2. electromagnetic wavescome from the sun and other sources


  3. microwavesradar and cellular phones use these waves


  4. radio wavesradar and cellular phones use these waves


  5. mirrorany surface that can reflect light to form an image, a picture, or an object