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6 Written questions

5 Multiple choice questions

  1. come from the sun and other sources
  2. light bounces off this kind of surface in the opposite direction from which it came
  3. cause some material to glow and are used to find unsafe bacteria in food
  4. used for radio and television broadcasting
  5. the only electromagnetic wave that is visible to the human eye

5 True/False questions

  1. lasersa piece of glass or other transparent object that refracts light and produces an image

          

  2. mirrorthe only electromagnetic wave that is visible to the human eye

          

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

          

  4. x-raysany surface that can reflect light to form an image, a picture, or an object

          

  5. roughlight bounces off this type of surface in all directions