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Color and Light Test

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11th grade Physics (Color and Light) Quiz on Color and Light Test, created by Olivia Gibbs on 17/03/2015.
Olivia Gibbs
Quiz by Olivia Gibbs, updated more than 1 year ago
Olivia Gibbs
Created by Olivia Gibbs over 9 years ago
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Resource summary

Question 1

Question
What is the ultimate source of electromagnetic waves?
Answer
  • TV antennas
  • Vibrating atoms
  • Vibrating molecules
  • Vibrating charged particles
  • Radio sets

Question 2

Question
If an electron vibrates up and down 1000 times each second, it generates an electromagnetic wave having a
Answer
  • speed of 1000 m/s.
  • wavelength of 1000 m.
  • period of 1000 s.
  • frequency of 1000 Hz.

Question 3

Question
Compared to the velocity of radio waves, the velocity of visible light waves is
Answer
  • faster.
  • slower.
  • the same.

Question 4

Question
The main difference between a radio wave and a light wave is its
Answer
  • speed.
  • wavelength.
  • speed and wavelength.
  • none of the above.

Question 5

Question
Compared to its speed in air, the speed of light in water is
Answer
  • the same.
  • faster.
  • slower.

Question 6

Question
Which of the following are fundamentally different from the others?
Answer
  • X-rays
  • Radio waves
  • Gamma rays
  • Sound waves
  • Light waves

Question 7

Question
Which of these electromagnetic waves has the shortest wavelength?
Answer
  • X-rays
  • Light waves
  • Infrared waves
  • Radio waves
  • Ultraviolet waves

Question 8

Question
If the sun were to disappear right now, we wouldn't know about it for 8 minutes because it takes 8 minutes
Answer
  • for light to travel from the sun to Earth.
  • to operate receiving equipment in the dark.
  • for the sun to disappear.
  • all of the above.
  • none of the above.

Question 9

Question
After randomly polarized light passes through a polarizer, it is
Answer
  • totally blocked.
  • partially polarized.
  • totally polarized.
  • randomly polarized.

Question 10

Question
The source of all electromagnetic waves is
Answer
  • vibrating charges.
  • electric fields.
  • magnetic fields.
  • heat.
  • none of the above.

Question 11

Question
Clouds
Answer
  • block UV light.
  • neither block nor transmit UV light.
  • transmit UV light.

Question 12

Question
Light that reflects at glancing angles from nonmetallic surfaces, such as glass, water, or roads is
Answer
  • randomly polarized.
  • polarized parallel to the surface.
  • polarized perpendicular to the surface.

Question 13

Question
Light does not pass through what kind of materials?
Answer
  • Transparent
  • Opaque
  • Neither transparent nor opaque

Question 14

Question
Solar eclipses are seen less commonly than lunar eclipses because
Answer
  • the sun is so much larger than the moon.
  • the sun is farther from Earth than is the moon.
  • Earth's shadow on the moon is larger than the moon's shadow on Earth.
  • solar eclipses don't happen as often as lunar eclipses.
  • none of the above.

Question 15

Question
How far is a light-second?
Answer
  • 18,000,000 km
  • 9,000,000 km
  • 5,000 km
  • 300,000 km
  • 95,000,000,000 km

Question 16

Question
If two polarizing filters are held with their polarization axes at right angles to each other, the amount of light transmitted compared to when their axes are parallel is
Answer
  • zero.
  • twice as much.
  • half as much.
  • the same.

Question 17

Question
The shiny surfaces of metals have most to do with
Answer
  • a resonant frequency of electrons in the metal.
  • the fact that light reflects from metals.
  • metals; relatively high density.
  • the free electrons in metal atoms.

Question 18

Question
Electromagnetic waves are
Answer
  • longitudinal waves.
  • transverse waves.

Question 19

Question
Glass is transparent to visible light, but not to
Answer
  • infrared.
  • ultraviolet.
  • infrared and ultraviolet.
  • none of the above.

Question 20

Question
Compared to the wavelength of ultraviolet waves, the wavelength of infrared waves is
Answer
  • shorter.
  • longer.
  • the same.

Question 21

Question
Heat lamps give off mostly
Answer
  • X-rays.
  • infrared waves.
  • radio waves.
  • ultraviolet waves.
  • microwaves.

Question 22

Question
Electromagnetic waves with higher frequencies have wavelengths that are
Answer
  • shorter.
  • longer.

Question 23

Question
An ideal polarizing filter will transmit 50% of non-polarized light incident on it. How much light is transmitted by two ideal polarizing filters that are oriented with their axes parallel to each other?
Answer
  • 50%
  • Between 50% and 100%
  • Between 0% and 50%
  • 0%
  • 100%

Question 24

Question
Electromagnetic waves
Answer
  • can travel through a vacuum.
  • need a medium to travel through.

Question 25

Question
Light reflected from a lake surface is polarized
Answer
  • randomly.
  • vertically.
  • horizontally.

Question 26

Question
Which of the following is NOT an electromagnetic wave?
Answer
  • Light
  • Infrared
  • X-ray
  • Sound
  • Radio

Question 27

Question
What is the frequency of an electromagnetic wave having a wavelength of 300,00 km?
Answer
  • Less than 1 Hz
  • More than 1 Hz
  • 1 Hz

Question 28

Question
Electromagnetic waves
Answer
  • need a medium to travel through.
  • can travel through a vacuum.

Question 29

Question
What is the wavelength of an electromagnetic wave that has a frequency of 1 Hz?
Answer
  • 1 m
  • Less than 1 m
  • More than 1 m

Question 30

Question
The primary purpose of polarized sunglasses is
Answer
  • to block ultraviolet rays.
  • to block infrared rays.
  • to block glare from reflections.
  • to look cool.

Question 31

Question
Because of absorption, a polarizing filter will actually transmit 40% of incident non-polarized light. Two polarizing filters with their axes aligned will transmit
Answer
  • 0%.
  • between 0% and 40%.
  • 40%.
  • between 40% and 100%.
  • 100%.

Question 32

Question
Infrared waves are responsible for sunburn.
Answer
  • True
  • False

Question 33

Question
A thin beam of light is called an X-ray.
Answer
  • True
  • False

Question 34

Question
Glass transmits ultraviolet and visible light waves but not infrared waves.
Answer
  • True
  • False

Question 35

Question
The distance light travels in one year is called light-year.
Answer
  • True
  • False

Question 36

Question
Materials that allow light to pass through them in straight lines are called opaque materials.
Answer
  • True
  • False

Question 37

Question
Polarization occurs when waves vibrate in a single direction.
Answer
  • True
  • False

Question 38

Question
Energy emitted by vibrating electric charges is carried by electromagnetic waves.
Answer
  • True
  • False

Question 39

Question
A total shadow is called an umbra.
Answer
  • True
  • False

Question 40

Question
Light sometimes acts as a wave and sometimes as a particle.
Answer
  • True
  • False

Question 41

Question
According to Einstein, light consists of massless bundles of electromagnetic energy called photons.
Answer
  • True
  • False

Question 42

Question
Electromagnetic heat waves are called ultraviolet waves.
Answer
  • True
  • False

Question 43

Question
The color of an object we see is determined by the
Answer
  • colors of light reflected by the object.
  • frequencies of light absorbed by the object.
  • colors of light shining on the object.
  • frequencies of light reflected by the object.
  • all of the above.

Question 44

Question
Sunlight contains all colors of light, but much of it is
Answer
  • orange.
  • blue.
  • violet.
  • yellow.
  • red.

Question 45

Question
Light shines on a pane of green glass and a pane of clear glass. The temperature will be
Answer
  • higher in the clear glass.
  • higher in the green glass.
  • the same in each.

Question 46

Question
Colors seen on TV result from color
Answer
  • subtraction.
  • addition.
  • none of the above.

Question 47

Question
Different colors of light correspond to different light
Answer
  • frequencies.
  • polarities.
  • intensities.
  • velocities.
  • none of the above

Question 48

Question
When blue and yellow paints are mixed together, the result is green. The reason for this is that
Answer
  • blue and yellow are complementary colors.
  • yellow pigments absorb green light and reflect all the others.
  • blue reflects only blue light, and yellow reflects almost all colors of light.
  • between blue and yellow pigments, all colors are absorbed except green.
  • blue absorbs yellow light and yellow absorbs blue light.

Question 49

Question
Magenta light is really a mixture of
Answer
  • red and yellow light.
  • red and cyan light.
  • yellow and green light.
  • red and blue light.
  • none of the above

Question 50

Question
The color of an opaque object is determined by the light that is
Answer
  • absorbed.
  • reflected.
  • transmitted.
  • all of the above
  • none of the above

Question 51

Question
If sunlight were green instead of white, the most comfortable color to wear on a hot day would be
Answer
  • yellow.
  • blue.
  • green.
  • magenta.
  • none of the above

Question 52

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

Question 53

Question
If the atmosphere were 50 times thicker than it now is, the sun would appear
Answer
  • blue-violet.
  • orange-green.
  • red-orange.
  • green-blue.
  • none of the above

Question 54

Question
The reason the sky is blue is that air molecules
Answer
  • are blue.
  • reflect blue light.
  • absorb yellow light.
  • absorb and then reemit blue light, scattering it in all directions.
  • absorb green light.

Question 55

Question
Sunsets are red because
Answer
  • the longest path of sunlight through the atmosphere is at sunset or sunrise.
  • a lot of high-frequency light is scattered by the atmosphere.
  • blue light from the sun is scattered by Earth's atmosphere.
  • all of the above
  • none of the above

Question 56

Question
The true color of water is
Answer
  • clear.
  • greenish blue.
  • sky blue.
  • green.
  • white.

Question 57

Question
The cyan color of ocean water is evidence that the water absorbs
Answer
  • yellow.
  • green.
  • orange.
  • blue.
  • red.

Question 58

Question
When a sample of an element is heated until it glows, the color it gives off is
Answer
  • a continuous band of color.
  • a composite of many frequencies of light.
  • a single frequency of light.

Question 59

Question
The colors of light emitted by incandescent gases show the
Answer
  • absorbing qualities of gas.
  • polarization of atoms in the gas.
  • relative masses of atoms in the gas.
  • identities of atoms in the gas.

Question 60

Question
The three primary colors of light for additive color mixing are
Answer
  • red, green, and blue.
  • yellow, green, and blue.
  • red, yellow, and blue.
  • red, yellow, and green.
  • yellow, cyan, and red.

Question 61

Question
When red and green light shine on a white sheet, the resulting color is
Answer
  • blue.
  • green.
  • yellow.
  • magenta.
  • cyan.

Question 62

Question
The complementary color of blue is
Answer
  • yellow.
  • cyan.
  • violet.
  • green.
  • magenta.

Question 63

Question
The colored dots that make up the color on a TV screen are
Answer
  • red, blue, and yellow.
  • red, blue, and green.
  • magenta, cyan, and yellow.
  • red, green, and yellow.
  • yellow, blue, and green.

Question 64

Question
Spectral lines in a line spectrum take the shape of lines because the
Answer
  • atoms that emit the light vibrate along parallel lines.
  • light emitted aligns with the gravitational field.
  • slit of the spectroscope is itself a line opening.
  • light is polarized.

Question 65

Question
A photograph of your favorite person's yellow sweater shows as what color on the negative?
Answer
  • Green
  • Orange
  • Red
  • Blue
  • Yellow

Question 66

Question
Material in an object that selectively absorbs colored light is called a pigment.
Answer
  • True
  • False

Question 67

Question
Two colors of light that add together to form black light are complementary colors.
Answer
  • True
  • False

Question 68

Question
A spectroscope is an instrument that analyzes the colors in a light beam.
Answer
  • True
  • False

Question 69

Question
Some electrons in atoms vibrate at a characteristic frequency that produces white light.
Answer
  • True
  • False

Question 70

Question
If an object were completely black, you wouldn't be able to see it directly.
Answer
  • True
  • False

Question 71

Question
If you're looking for an instrument that tells what stars are made of, look for a
Answer
  • spectroscope.
  • telescope.
  • stellar microscope.
  • stethoscope.

Question 72

Question
The complementary color of green is
Answer
  • red.
  • magenta.
  • green.
  • yellow.
  • cyan.

Question 73

Question
A sheet of red paper will look black when illuminated with
Answer
  • cyan light.
  • red light.
  • magenta light.
  • yellow light.
  • none of the above

Question 74

Question
The white caps of waves as they overturn are evidence that the water has
Answer
  • broken into an assortment of tiny particles that scatter all colors.
  • lost its transparency.
  • absorbed back
  • reflected red, green, and blue light.

Question 75

Question
Humans are most sensitive to light that is
Answer
  • yellow-green.
  • white.
  • green-blue.
  • red.
  • black.

Question 76

Question
A tennis ball is most easily seen if its color is
Answer
  • black.
  • violet.
  • yellow-green.
  • white.

Question 77

Question
When red and green light shine on a white sheet, the resulting color is
Answer
  • green.
  • blue.
  • yellow.
  • cyan.
  • magenta.

Question 78

Question
Earth receives a lot of ultraviolet radiation from the sun. Luckily most of it does't reach the ground, because it is
Answer
  • scattered by the upper atmosphere.
  • absorbed by a protective layer of ozone gas in the upper atmosphere.
  • absorbed by the large amount of air in the atmosphere.
  • Actually, there isn't enough UV radiation coming from the sun to harm us.

Question 79

Question
The sky is blue because air molecules in the sky act as tiny
Answer
  • resonators that scatter blue light.
  • mirrors that reflect only blue light.
  • sources of white light.
  • prisms.
  • none of the above

Question 80

Question
The three paint colors that are useful for color subtraction are
Answer
  • red, green, and blue.
  • magenta, cyan, and yellow.
  • red, blue, and yellow.
  • magenta, cyan, and red.
  • magenta, green, and yellow.

Question 81

Question
Complementary colors are two colors that
Answer
  • are next to each other on the color chart.
  • produce white light when added together.
  • look good together.
  • are primary colors.
  • none of the above

Question 82

Question
The sky is blue because air molecules absorb blue light.
Answer
  • True
  • False

Question 83

Question
Tennis balls are yellow-green because our eyes are most sensitive to that color.
Answer
  • True
  • False
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