# Color and Light Test

Quiz by Olivia Gibbs, updated more than 1 year ago
 Created by Olivia Gibbs over 5 years ago
31
1

### Description

11th grade Physics (Color and Light) Quiz on Color and Light Test, created by Olivia Gibbs on 03/17/2015.

## Resource summary

### Question 1

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

### Question 2

Question
If an electron vibrates up and down 1000 times each second, it generates an electromagnetic wave having a
• 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
• faster.
• slower.
• the same.

### Question 4

Question
The main difference between a radio wave and a light wave is its
• 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
• the same.
• faster.
• slower.

### Question 6

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

### Question 7

Question
Which of these electromagnetic waves has the shortest wavelength?
• X-rays
• Light waves
• Infrared 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
• 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
• totally blocked.
• partially polarized.
• totally polarized.
• randomly polarized.

### Question 10

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

### Question 11

Question
Clouds
• 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
• randomly polarized.
• polarized parallel to the surface.
• polarized perpendicular to the surface.

### Question 13

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

### Question 14

Question
Solar eclipses are seen less commonly than lunar eclipses because
• 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?
• 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
• zero.
• twice as much.
• half as much.
• the same.

### Question 17

Question
The shiny surfaces of metals have most to do with
• 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
• longitudinal waves.
• transverse waves.

### Question 19

Question
Glass is transparent to visible light, but not to
• 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
• shorter.
• longer.
• the same.

### Question 21

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

### Question 22

Question
Electromagnetic waves with higher frequencies have wavelengths that are
• 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?
• 50%
• Between 50% and 100%
• Between 0% and 50%
• 0%
• 100%

### Question 24

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

### Question 25

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

### Question 26

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

### Question 27

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

### Question 28

Question
Electromagnetic waves
• 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?
• 1 m
• Less than 1 m
• More than 1 m

### Question 30

Question
The primary purpose of polarized sunglasses is
• 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
• 0%.
• between 0% and 40%.
• 40%.
• between 40% and 100%.
• 100%.

### Question 32

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

### Question 33

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

### Question 34

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

### Question 35

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

### Question 36

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

### Question 37

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

### Question 38

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

### Question 39

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

### Question 40

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

### Question 41

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

### Question 42

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

### Question 43

Question
The color of an object we see is determined by the
• 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
• 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
• higher in the clear glass.
• higher in the green glass.
• the same in each.

### Question 46

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

### Question 47

Question
Different colors of light correspond to different light
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• clear.
• greenish blue.
• sky blue.
• green.
• white.

### Question 57

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

### Question 62

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

### Question 63

Question
The colored dots that make up the color on a TV screen are
• 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
• 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?
• Green
• Orange
• Red
• Blue
• Yellow

### Question 66

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

### Question 67

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

### Question 68

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

### Question 69

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

### Question 70

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

### Question 71

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

### Question 72

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

### Question 73

Question
A sheet of red paper will look black when illuminated with
• 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
• 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
• yellow-green.
• white.
• green-blue.
• red.
• black.

### Question 76

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

### Question 77

Question
When red and green light shine on a white sheet, the resulting color is
• 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
• 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
• 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
• 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
• 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.
• True
• False

### Question 83

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

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