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6 Written questions

5 Multiple choice questions

  1. a piece of glass or other transparent object that refracts light and produces an image
  2. cause some material to glow and are used to find unsafe bacteria in food
  3. any surface that can reflect light to form an image, a picture, or an object
  4. come from the sun and other sources
  5. produce a thin beam of light that is only one color

5 True/False questions

  1. lightthe only electromagnetic wave that is visible to the human eye

          

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

          

  3. microwavesradar and cellular phones use these waves

          

  4. convex mirrorcurves inward and makes things close to it look larger

          

  5. infrared wavesused for radio and television broadcasting