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