chapter 27 test yourself

Distant dark mountains appear bluish because -they are far away. -you're looking at low-level blue sky between you and the mountain. -yellow is being scattered. -of nature's wonderful preferences.

you're looking at low-level blue sky between you and the mountain

The greenish blue of water is evidence for the -reflection of greenish-blue light. -reflection of red light. -absorption of red light. -interaction between green and blue frequencies of light. -absorption of greenish-blue light.

absorption of red light

If three primary colors of light shine on a white wall and produce a white spot, the primaries must be -subtractive. -additive. -divisive. -multiplicative.

additive

Compared to smaller clouds with small droplets, a big cloud with large droplets -is more likely to produce rain. -is darker. -absorbs more light. -all the above -none of the above

all of the above

What color is fully transmitted in common window glass? -yellow -red -green -blue -all of the above

all of the above

If molecules in the sky scattered orange light instead of blue light, sunsets would be colored -green. -blue. -yellow. -orange. -none of the above

blue

A banana will appear black when illuminated with -green light. -blue light. -black light. -red light.

blue light

Which piece of glass will warm up quicker in sunlight? -colored glass -clear glass -both the same

colored glass

A white boat sunk in water where sunlight is dim appears -red. -cyan. -yellow. -no colorblack.

cyan

Stare at a red wall for a few minutes and then gaze at a white wall. Due to retina fatigue you see -black. -cyan. -more red.

cyan

Different colors of light correspond to different light -frequencies. -intensities. -velocities. -polarities. -none of the above

frequencies

Strictly speaking, to say that an apple is red means that -it appears red. -an apple is red. -is, or appears makes no difference-red is red.

it appears red

The sky is usually the deepest blue -when the air is humid. -just before sunset. -just after a rainstorm. -just before a rainstorm. -during a rainstorm.

just after a rainstorm

A setting Sun appears red due to -lower frequencies of light emitted during sunset. -light's longer path through air at sunset. -absorption by smaller particles in the air. -scattering of lower frequencies by larger particles in the air.

light's longer path through air at sunset

If sunlight were green instead of white, the most comfortable color to wear on a cold day would be -yellow. -green. -violet. -magenta. -blue.

magenta

Look at full-color photos in your textbook with a magnifying glass and you'll see inks of -magenta, cyan, yellow, and black. -red, green, and blue. -red, green, blue, and black. -magenta, cyan, and yellow. -none of these

magenta, cyan, yellow, and black

The atmosphere of Jupiter is more than 1000 km thick. From Jupiter's surface, the Sun at noon would appear -not at all. -faintly white. -white. -none of the above

none of the above

The part of the visible spectrum most absorbed by water is -cyan. -infrared. -red. -all about equally.

red

Magenta light is a mixture of -red and blue light. -red and yellow light. -yellow and green light. -red and cyan light. -none of the above

red and blue light

The LEDs that make up the color on some TV screens are -yellow, blue, green. -magenta, cyan, yellow. -red, green, yellow. -red, blue, green. -red, blue, yellow.

red, blue, green

On a planet where atmospheric gases are red, distant dark mountains would appear -yellowish. -bluish. -greenish. -untinted. -reddish.

reddish

The color of an opaque object is the same as the light that is -transmitted. -absorbed. -reflected. -all of the above -none of the above

reflected

The redness of the lunar eclipse is due to -scattering of lower frequencies of light by the Moon. -infrared light continually emitted by the Moon. -refraction of sunsets and sunrises all around Earth. -dim light that is incident upon the Moon by Jupiter and other planets.

refraction of sunsets and sunrises all around Earth

Which interacts more with high-frequency sounds? -large bells -small bells -both the same

small bells

The dimmest part of sunlight is -violet. -green. -yellow-green. -red. -yellow.

violet

If Earth's atmosphere were appreciably thicker, snow would appear -blue. -ultraviolet. -yellow. -still white.

yellow

If only one color is absorbed in the pigment of a particular blue paint, that color would be -green. -yellow. -blue. -red.

yellow

The complementary color of blue is -yellow. -red. -magenta. -cyan. -green.

yellow

A blueberry will look black when illuminated with -magenta light. -yellow light. -cyan light. -none of the above

yellow light

A fast-moving ball is more easily seen if it is -green-blue. -violet. -red. -yellow-green. -orange.

yellow-green

The brightest color in sunlight is -red. -green. -violet. -yellow-green. -yellow.

yellow-green