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WorksheetsLight and Pigment
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
If you look at the yellow Sun just before sunset for a few seconds and then look at a white cloud you see ______ afterimages of the Sun
a)
Red
b)
Green
c)
Blue
d)
Cyan
2.
A mixture of cyan and yellow paints gives ________ paint.
a)
Green
b)
Red
c)
Black
d)
Blue
3.
Adding red and green spotlights gives us what color?
a)
Cyan
b)
Yellow
c)
Blue
d)
Magenta
4.
Suppose that two flashlight beams are shone on a white screen, one through a pane of blue glass and the other through a pane of green glass. What color appears on the screen where the beams overlap?
a)
Yellow
b)
Green
c)
Cyan
d)
Magenta
5.
If a car headlight emitted only yellow light, the normally green grass appears to be __________
a)
Green
b)
Red
c)
Black
d)
Yellow
6.
To see an afterimage of a red, white, and blue Texas flag one would first stare at a flag with the colors:
a)
Yellow, Violet, and Green
b)
Cyan, Yellow, and Magenta
c)
Cyan, Black, and Yellow
d)
Yellow, Cyan, and Green
7.
The worst thing you can do for the health of a green-leafed plant is to illuminate it with only
a)
red light
b)
green light
c)
blue light
d)
all are equally bad
8.
Most of the light that we see has undergone _________
a)
Selective interference
b)
Selective transmission
c)
Selective reflection
d)
Selective refraction
9.
A mixture of magenta and green light gives white light. These two colors are _________
a)
Additive primaries
b)
Secondary colors
c)
Complementary colors
d)
Fluorescent colors
10.
Mixing yellow paint and magenta paint gives what color?
a)
Red
b)
Green
c)
Blue
d)
Cyan
11.
What color would red cloth appear if it were illuminated by cyan light?
a)
Cyan
b)
Red
c)
Yellow
d)
Black
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