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Color and Light Test

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11th grade Physics (Color and Light) Quiz sobre Color and Light Test, criado por Olivia Gibbs em 17-03-2015.
Olivia Gibbs
Quiz por Olivia Gibbs, atualizado more than 1 year ago
Olivia Gibbs
Criado por Olivia Gibbs mais de 9 anos atrás
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Resumo de Recurso

Questão 1

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

Questão 2

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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

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

Questão 7

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

Questão 8

Questão
If the sun were to disappear right now, we wouldn't know about it for 8 minutes because it takes 8 minutes
Responda
  • 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.

Questão 9

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

Questão 10

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

Questão 11

Questão
Clouds
Responda
  • block UV light.
  • neither block nor transmit UV light.
  • transmit UV light.

Questão 12

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

Questão 13

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

Questão 14

Questão
Solar eclipses are seen less commonly than lunar eclipses because
Responda
  • 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.

Questão 15

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

Questão 16

Questão
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
Responda
  • zero.
  • twice as much.
  • half as much.
  • the same.

Questão 17

Questão
The shiny surfaces of metals have most to do with
Responda
  • 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.

Questão 18

Questão
Electromagnetic waves are
Responda
  • longitudinal waves.
  • transverse waves.

Questão 19

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

Questão 20

Questão
Compared to the wavelength of ultraviolet waves, the wavelength of infrared waves is
Responda
  • shorter.
  • longer.
  • the same.

Questão 21

Questão
Heat lamps give off mostly
Responda
  • X-rays.
  • infrared waves.
  • radio waves.
  • ultraviolet waves.
  • microwaves.

Questão 22

Questão
Electromagnetic waves with higher frequencies have wavelengths that are
Responda
  • shorter.
  • longer.

Questão 23

Questão
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?
Responda
  • 50%
  • Between 50% and 100%
  • Between 0% and 50%
  • 0%
  • 100%

Questão 24

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

Questão 25

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

Questão 26

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

Questão 27

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

Questão 28

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

Questão 29

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

Questão 30

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

Questão 31

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

Questão 32

Questão
Infrared waves are responsible for sunburn.
Responda
  • True
  • False

Questão 33

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

Questão 34

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

Questão 35

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

Questão 36

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

Questão 37

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

Questão 38

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

Questão 39

Questão
A total shadow is called an umbra.
Responda
  • True
  • False

Questão 40

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

Questão 41

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

Questão 42

Questão
Electromagnetic heat waves are called ultraviolet waves.
Responda
  • True
  • False

Questão 43

Questão
The color of an object we see is determined by the
Responda
  • 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.

Questão 44

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

Questão 45

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

Questão 46

Questão
Colors seen on TV result from color
Responda
  • subtraction.
  • addition.
  • none of the above.

Questão 47

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

Questão 48

Questão
When blue and yellow paints are mixed together, the result is green. The reason for this is that
Responda
  • 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.

Questão 49

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

Questão 50

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

Questão 51

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

Questão 52

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

Questão 53

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

Questão 54

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

Questão 55

Questão
Sunsets are red because
Responda
  • 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

Questão 56

Questão
The true color of water is
Responda
  • clear.
  • greenish blue.
  • sky blue.
  • green.
  • white.

Questão 57

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

Questão 58

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

Questão 59

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

Questão 60

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

Questão 61

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

Questão 62

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

Questão 63

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

Questão 64

Questão
Spectral lines in a line spectrum take the shape of lines because the
Responda
  • 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.

Questão 65

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

Questão 66

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

Questão 67

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

Questão 68

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

Questão 69

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

Questão 70

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

Questão 71

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

Questão 72

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

Questão 73

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

Questão 74

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

Questão 75

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

Questão 76

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

Questão 77

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

Questão 78

Questão
Earth receives a lot of ultraviolet radiation from the sun. Luckily most of it does't reach the ground, because it is
Responda
  • 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.

Questão 79

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

Questão 80

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

Questão 81

Questão
Complementary colors are two colors that
Responda
  • 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

Questão 82

Questão
The sky is blue because air molecules absorb blue light.
Responda
  • True
  • False

Questão 83

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

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