Chapter 27 review Physics
LED TV
-Blue -Green -Red
cool of an object depends on what?
It depends on the light frequency shining on it
What characteristic of light mostly relates to color? A) frequency B) amplitude C) both of these
A) Frequency
A mixture of cyan and yellow pigments appears A) green. B) blackish-brown. C) blue. D) magenta. E) orange.
A) Green
What color light is transmitted by a piece of blue glass? A) white B) blue C) orange D) red E) yellow
B) blue
Strictly speaking, to say that an apple is red means that A) an apple is red. B) it appears red. C) is, or appears makes no difference is red.
B) it appears red
Different colors of light correspond to different light A) polarities. B) intensities. C) velocities. D) frequencies. E) none of the above
D) Frequencies
Shadow is ?
Shadow is complimentary color
When objects complimentary light color shines on it the object will?
The object will appear Black
Eyes are most sensitive to ?
To yellow-green
Complementary color are what ?
complementary are two colors added together to make white light.
Blue + Yellow =
white
Green + Magenta =
white
Red + Cyan =
white
When the frequency of light matches the natural frequency of molecules in a material, light is A) absorbed. B) transmitted. C) reflected. D) none of the above
A) Absorbed
You can get a sunburn while under the "shade" of a beach umbrella due to A) reflected sunlight from the sand. B) refracted sunlight from the water. C) light scattering in the air. D) none of the above
A) reflected sunlight from the sand.
The complementary color of blue is A) magenta. B) yellow. C) red. D) green. E) cyan.
B) Yellow
Black is ?
Black is not a color!
Complementary colors are two colors that A) are additive primary colors. B) blend together. C) produce white light when added. D) are right for each other. E) produce white light when subtracted.
C) Produce white light when added
If three primary colors of light shine on a white wall and produce a white spot, the primaries must be A) divisive. B) multiplicative. C) additive. D) subtractive.
C) addictive
What are the full printed color in a printer ?
Cyan, yellow, magenta, + black
A banana will appear black when illuminated with A) red light B) cyan light C) green light D) blue light
D) blue light
Magenta light is a mixture of A) red and cyan light. B) yellow and green light. C) red and yellow light. D) red and blue light. E) none of the above
D) red and blue light
How do we stay cool ?
Wear something same color as the sunlight.
how do you stay warm ?
Wear something that is sunlight complimentary color
white light shinning on on it it will ?
the object will reflect the color the object appears and absorb all other frequencies.