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Light and Color

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					                                        Color Mixing
      The primary colors of PAINT are _______________, _______________, and _______________.
     These are sometimes given as ________________, ________________, and ________________.

                       Mixing the Primary Colors of Paint (pigments)

                       ______________ + ______________ = ______________
                       ______________ + ______________ = ______________
                       ______________ + ______________ = ______________

              ______________ + ______________ + ______________ = ______________

                Mixing LIGHT is NOT the same as MIXING PAINT (PIGMENTS)!

    The primary colors of LIGHT are ________________, ________________, and ________________.

    COMPLIMENTARY COLORS are ____________________________________________________.

               Three pairs of complimentary colors are _____________ & _____________,
               _____________ & _____________, and _____________ & _____________.


                               Mixing the Primary Colors of Light

                       ______________ + ______________ = ______________
                       ______________ + ______________ = ______________
                       ______________ + ______________ = ______________

              ______________ + ______________ + ______________ = ______________

                                 The Color of Opaque Objects

The color of an OPAQUE object depends on ___________________________________________________

_______________________________________________________________________________________

                      Complete this chart using the THREE COLOR PROCESS.
        Normal Color
                                             Absorbs                            Reflects
   (color under white light)
             Red
             Blue
            Green
             Cyan
            Yellow
           Magenta
            Black
            White



                                                                                                1
             “What color is a _____________ object when ______________ light shines on it?”

                       Think: The color seen will be the color, or combination of colors,
                           that both shine on the object and reflect from the object.

  “Normal”                                                 “Normal”
                   Incident Light       Color Seen                         Incident Light   Color Seen
    Color                                                    Color
                          Red                                                   Red
                          Blue                                                  Blue
    Red -                Green                               Cyan -            Green
                          Cyan                                                  Cyan
  reflects…              Yellow                             reflects…          Yellow
                        Magenta                                               Magenta
                         White                                                 White
                          Red                                                   Red
                          Blue                                                  Blue
    Blue -               Green                              Magenta -          Green
                          Cyan                                                  Cyan
  reflects…              Yellow                             reflects…          Yellow
                        Magenta                                               Magenta
                         White                                                 White
                          Red                                                   Red
                          Blue                                                  Blue
   Green -               Green                               Yellow -          Green
                          Cyan                                                  Cyan
  reflects…              Yellow                             reflects…          Yellow
                        Magenta                                               Magenta
                         White                                                 White



                                   The Color of Transparent Objects
The color of a TRANSPARENT object depends on ________________________________________________

_________________________________________________________________________________________


                          Complete this chart using the THREE COLOR PROCESS.
       “Normal” Color
                                              Blocks (Absorbs)                        Transmits
   (color under white light)
               Red
               Blue
              Green
               Cyan
              Yellow
             Magenta
               Black
               White




                                                                                                         2
                  What color is seen (transmitted) when the following transparent
                 filters are placed together and white light is incident upon them?

       Thought process: Think of bouncers at a club. Filter 1 pulls ________ out of white
          (red + blue + green). Filter 2 takes ________ out of what made it past Filter 1.
  The color seen will be the color, or combination of colors, that can pass through BOTH filters.

Filter 1           Filter 2           Color             Filter 1            Filter 2              Color
                    Red                                                       Red
                    Blue                                                      Blue
                   Green                                                     Green
  Red                                                    Cyan
                    Cyan                                                      Cyan
                   Yellow                                                    Yellow
                  Magenta                                                   Magenta
                    Red                                                       Red
                    Blue                                                      Blue
                   Green                                                     Green
  Blue                                                 Magenta
                    Cyan                                                      Cyan
                   Yellow                                                    Yellow
                  Magenta                                                   Magenta
                    Red                                                       Red
                    Blue                                                      Blue
                   Green                                                     Green
 Green                                                   Yellow
                    Cyan                                                      Cyan
                   Yellow                                                    Yellow
                  Magenta                                                   Magenta




                                                 When three colored lamps (red, blue and green)
                                                 illuminate a physics instructor in front of a white screen
                                                 in a dark room, three slightly overlapping shadows
                                                 appear. Specify the colors in Regions 1 through 6.

                                                 1.
                                                 2.
                                                 3.
                                                 4.
                                                 5.
                                                 6.




 What would you see if the screen was not white? (for example: red or yellow)

 Could you answer the same question if the lights were cyan, magenta, and yellow?




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posted:10/3/2011
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