# Light and Color by zhangyun

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• pg 1
```									                                        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?

3

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