Physics - Chapter 27 Color

A mixture of red and green pigments appears A) muddy-brown B) orange C) magenta D) yellow E) blue

A

A red crab very deep in water, where sunlight is dim, appears A) no color - black B) red C) cyan D) brown E) orange

A

Your friend says that the reason the distant dark mountains appear blue is because you're looking at the sky between you and the mountains. Do you agree or disagree? A) I agree B) I disagree

A

A fast-moving ball is more easily seen if it is A) green-blue. B) yellow-green C) orange D) red E) violet

B

Compared to smaller clouds with small droplets, a big cloud with large droplets A) is more likely to produce rain B) absorbs more light. C) is darker. D) all the above E) none of the above

D

The complementary color of blue is A) magenta B) green C) red D) cyan E) yellow

E

Yellow light + blue light = _______ light

White

Magenta + yellow + cyan = _______ light

white

A red apple will appear black when illuminated with A) yellow light B) magenta light C) blue light D) cyan light E) none of the above

D

Different colors of light correspond to different light A) polarities B) intensities C) velocities D) frequencies E) none of the above

D

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

D

If only one color is absorbed in the pigment of a particular blue paint, that color would be A) red B) blue C) green D) yellow

D

On a planet in the solar system where the sky normally scatters light of lower frequencies, its sunsets would be A) reddish. B) whitish C) yellow-greenish. D) bluish

D

On a planet where atmospheric gases are red, distant dark mountains would appear A) bluish B) greenish. C) yellowish D) reddish E) untinted

D

Red sunsets are due to light of lower frequencies that A) are scattered from larger particles in the air. B) are scattered from smaller particles in the air. C) are reflected by clouds and relatively large particles in the air. D) survive being scattered in the air. E) appear reddish-orange to the eye.

D

The LEDs that make up the color on some TV screens are A) red, blue, yellow. B) magenta, cyan, yellow. C) red, green, yellow. D) red, blue, green. E) yellow, blue, green.

D

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

D

The greenish blue of water is evidence for the A) reflection of greenish-blue light. B)interaction between green and blue frequencies of light. C) reflection of red light. D) absorption of greenish-blue light. E) absorption of red light.

E

What color is fully transmitted in common window glass? A) yellow B) red C) blue D) green E) all of the above

E

Green light + __________ light = white light

Magenta

True or false: Red + green + blue = white

True

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

A

Complementary colors are two colors that A) produce white light when added. B) produce white light when subtracted. C) blend together. D) are additive primary colors. E) are right for each other.

A

Distant bright snowy mountains appear yellowish because A) blue has been scattered away from light reflected from the mountains. B) of nature's wonderful preferences. C) the color yellow looks just right. D) they are far away.

A

How many colors of ink are used to print full-color pictures? A) three plus black B) six plus black C) four plus black D) two plus black E) one plus black

A

If molecules in the sky scattered orange light instead of blue light, sunsets would be colored A) blue B) green C) orange D) yellow E) none of the above

A

If the atmosphere were about 40 times thicker, the Sun at noon would appear A) red-orange B) green - blue C) blue-violet D) orange-green

A

Light shines on a pane of green glass and a pane of clear glass. The temperature will be higher in the A) green glass B) clear glass C) both the same

A

On a planet where atmospheric gases are yellow, distant snow covered hills would look A) bluish B) greenish C) reddish D) yellowish E) untinted

A

Strictly speaking, to say that an apple is red means that A) it appears red B) an apple is red C) is, or appears makes no difference red is red

A

The Sun is not seen as yellow-green because A) it is small part of a mixture of other colors in sunlight. B) our vision is not adapted to yellow-green. C) its brightness is only slightly greater than the other colors. D) it is not yellow-green.

A

The brightest color in sunlight is A) yellow-green B) red C) green D) yellow E) violet

A

The color of an opaque object is the same as the light that is A) reflected B) absorbed C) transmitted D) all of the above E) none of the above

A

The dimmest part of sunlight is A) violet B) yellow C) green D) red E) yellow-green

A

The whiteness of clouds, unlike the blueness of the sky, primarily involves A) reflection and refraction of sunlight. B) seeds upon which condensation of cloud material forms C) water prisms. D) medium sized particles

A

What characteristic of light mostly relates to color? A) frequency B) amplitude C) both of these

A

When you see the colors on the cover of your physics book lying on your desk, what is occuring at the surface of the book? A) color subtraction B) color addition C) color addition and color subtraction D) none of the above

A

Which interacts more with high-frequency light? A) small particles B) large particles C) both the same

A

A white boat sunk in water where sunlight is dim appears A) no color black B) cyan C) red D) yellow

B

Colors seen on some TV screens result from color A) subtraction B) addition C) either of these D) neither of these

B

If Earth's atmosphere were appreciably thicker, snow would appear A) ultraviolet B) yellow C) still white D) blue

B

If sunlight were green instead of white, the most comfortable color to wear on a cold day would be A) green B) magenta C) yellow D) violet E) blue

B

Light travels slightly slower in the A) upper atmosphere B) lower atmosphere C) neither of these

B

The part of the electromagnetic spectrum most absorbed by water is A) cyan B) infrared C) red D) all about equality

B

The sky is blue because air molecules in the sky act as tiny A) sources of white light. B) optical tuning forks that scatter blue light. C) prisms D) mirrors which reflect only blue light. E) none of the above

B

The sky is usually the deepest blue A) during a rainstorm. B) just after a rainstorm. C) just before a rainstorm. D) when the air is humid. E) just before sunset.

B

What color light is transmitted by a piece of blue glass? A) orange B) blue C) white D) red E) yellow

B

Which interacts more with high-frequency sounds? A) large bells B) small bells C) both the same

B

Which is not a color? A) yellow-green B) black C) both of these D) neither of these

B

Which piece of glass will warm up quicker in sunlight? A) clear glass B) colored glass C) both the same

B

You can get a sunburn while under the "shade" of a beach umbrella due to A) light scattering in the air. B) reflected sunlight from the sand C) refracted sunlight from the water. D) none of the above

B

A banana will appear black when illuminated with A) green light B) red light C) blue light D) black light

C

A blueberry will look black when illuminated with A) cyan light. B) magenta light. C) yellow light. D) none of the above

C

A mixture of cyan and yellow pigments appears A) blue B) orange C) green D) magenta E) blackish-brown

C

A piece of glass that appears red seen in transmission mode A) absorbs or reflects all colors except red B) transmits red C) both of these D) neither of these

C

If sunlight were green instead of white, the most comfortable color to wear on a hot day would be A) magenta B) blue C) green D) violet E) yellow

C

If three primary colors of light shine on a white wall and produce a white spot, the primaries must be A) multiplicative B) subtractive C) additive D) divisive

C

Isaac Newton first became famous for his contributions to the understanding of A) the law of gravity B) the laws of mechanics C) light

C

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

C

Magenta light is a mixture of A) red and cyan light. B) yellow and green light. C) red and blue light. D) red and yellow light. E) none of the above

C

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

C

The darkness of clouds is due to A) often being in the shadow of another cloud. B) absorption C) both of these D) neither of these

C

The extraordinary blueness in lakes in the Canadian Rockies is the result of A) the unique temperatures of these lakes throughout most of the year. B) high-altitude refraction of light. C) glacial silt in the water scattering blue light. D) none of the above

C

The part of the visible spectrum most absorbed by water is A) cyan B) infrared C) red D) all about equality

C

The physics underlying the redness of sunsets and the color of blue jays involves A) absorbed sunlight. B) different processes for sunsets and blue jays. C) scattered sunlight.

C

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

C

The solar radiation curve is A) a plot of sunlight colors versus their frequencies. B) a dent in the spherical Sun. C) a plot of Sun's brightness versus frequency of emission. D) the path of the Sun as it circles Earth. E) a plot of light intensity versus temperature of the Sun

C

When the frequency of light matches the natural frequency of molecules in a material, light is A) reflected B) transmitted C) absorbed D) none of the above

C