chapter 28 review
circle the color of light that is scattered the least as it passes through the atmosphere: a. red b. orange c. yellow d. blue
a
circle the letter of the color that water molecules absorb: a. red b. green c. blue d. all
a
Circle the letter of each statement that's true about Newton's study of color: a. he studied light b. he passes sunlight through triangular-shaped pieces of glass c. he observed that sunlight was broken into a rainbow like pattern of colors d. he showed that sunlight is yellow light
a,b,c
red, blue, and green are known as the primary ________ colors.
additive
Two colors of light that when added together produce white are known as ___________
additive primary colors
circle the letter that explains what the energy from the light absorbed by a piece of glass does to the glass: a. the energy hardens the glass b. the energy warms the glass c. the energy darkens the glass d. the energy has no effect on the glass
b
Yellow is the complementary color of _________
blue
Circle the letter that best describes the color of an opaque object: a. an opaque object is the color it absorbs b. an opaque object is the color of the light that shines on it c. an opaque object is the color it reflects d. an opaque object is the color of white light
c
circle the letter that describes what occurs when many particles larger than oxygen and nitrogen molecules are in the atmosphere: a. the sky appears darker blue b. the sky appears black c. the sky appears whitish d. the sky appears green
c
water molecules absorb certain frequencies of colored light. Circle the letter of the complementary color that is absorbed (the color that water reflects): a. magenta b. yellow c. cyan d. white
c
circle the letter of each statement that best explains why a red apple looks red: a. it absorbs red light b. it transmits red light c. it reflect red light d. it absorbs all colors except red
c,d
the spectrum emitted by an element can be used to ________ the element.
change
circle the letter that best describes the light that results when a color is subtracted from white light: a. black b. magenta c. muddy brown d. the complementary color to the subtracted color
d
t/f: black is a _combo of all colors of light_
false
t/f: candlelight emits light in the _lower_ frequency range of colors
false
t/f: paints and dyes produce color by _adding_ colors
false
t/f: the color of a transparent object is determined by the color of light it _absorbs_
false
t/f: the colors of the visible spectrum in the correct order (longest to shortest wavelength) is _violet,indigo,blue,green,yellow,orange,red_
false
t/f: the sky appears blue because particles in the atmosphere scatter _low_-frequency light
false
t/f: when an object remits the light that shines on it, _absorption occurs_
false
Magenta is the complementary color of ________
green
cyan is a mixture of _____
green and blue
as more high frequencies of light are scattered, the color of the sky progressively becomes ________.
lighter
as the path of sunlight through the atmosphere increases, what color of light is scattered more?
red
cyan is the complementary color of _______
red
magenta is a mixture of _____
red and blue
yellow is a mixture of _____
red and green
when a sunlight shines on a piece of blue glass, the glass appears blue because blue light is _______ and other colors are _________.
reflected, absorbed
many clouds appear white because they contain water droplets of many ________ which can cause many frequencies of light to be scattered. These combined frequencies make the cloud appear white.
sizes
the mixing of pigments, paints, or dyes is known as mixing color by ________
subtraction
t/f: _magenta, yellow, and cyan_ are the colors used n printing illustrations in full color
true
t/f: at sunset, only _lower-frequency_ light strike earth
true
t/f: by mixing _red, blue, and green_ light and adjusting the brightness of each, virtually any color can be formed
true
t/f: color tv produces colors by _adding_ colors of light
true
t/f: the mixing of colored paints yields _similar_ results as well as mixing the same colors of light
true
t/f: the smaller the particle in the atmosphere, the _higher_ the frequency of light it scatters
true
t/f: ultraviolet light emits frequencies in the _higher_ frequency range
true
t/f: water is _transparent_ to nearly all the frequencies of white light
true
t/f: when made to emit light, every element emits _the same) pattern
true
although ________ light is scattered more than blue light, our eyes see the sky as blue because our eyes are more sensitive to the blue light.
violet
what color of light is produced when red, blue, and green light of equal brightness overlap?
white
based on the radiation curve shown in your book, what is the brightest portion of the color spectrum of sunlight humans see best?
yellow-green