Question 1

Compared with the speed of light in a vacuum, the speed of light in the empty space between molecules in glass is

Accepted Answer

A) more. 
B) the same. 
C) less. 
A) more. 
B) the same. 
C) less.

Question 2

Which has the shortest wavelength?

Accepted Answer

A) radio waves 
B) infrared waves 
C) X rays 
D) ultraviolet waves 
E) light waves 
A) radio waves 
B) infrared waves 
C) X rays 
D) ultraviolet waves 
E) light waves

Question 3

Relative to its average speed in air, the average speed of a beam of light in glass is

Accepted Answer

A) more. 
B) the same. 
C) less. 
A) more. 
B) the same. 
C) less.

Question 4

A yellow-white candle flame reflected from a piece of red glass shows two images, one from each surface.

Accepted Answer

A) both images are yellow-white. 
B) one image is yellow-white and the other image is red. 
C) both images are red. 
D) both images are reddish yellow. 
A) both images are yellow-white. 
B) one image is yellow-white and the other image is red. 
C) both images are red. 
D) both images are reddish yellow.

Question 5

The average speed of light is greatest in

Accepted Answer

A) red glass. 
B) orange glass. 
C) green glass. 
D) blue glass. 
E) same in all 
A) red glass. 
B) orange glass. 
C) green glass. 
D) blue glass. 
E) same in all

Question 6

What accounts for the additional few minutes of sunlight we experience daily, before sunrise and after sunset?

Accepted Answer

Atmospheric refraction adds to daylight

Question 7

Object and image for a plane mirror lie

Accepted Answer

A) along the same plane. 
B) equal distances from the mirror. 
C) at right angles to each other. 
D) all of the above 
E) none of the above 
A) along the same plane. 
B) equal distances from the mirror. 
C) at right angles to each other. 
D) all of the above 
E) none of the above

Question 8

An important feature of red sunsets is the

Accepted Answer

A) scattering of lower frequencies by larger particles in the air. 
B) longer path of air through which sunlight travels. 
C) lower frequencies of light emitted late in the day by the Sun. 
D) absorption effects of the smaller particles in the air. 
A) scattering of lower frequencies by larger particles in the air. 
B) longer path of air through which sunlight travels. 
C) lower frequencies of light emitted late in the day by the Sun. 
D) absorption effects of the smaller particles in the air.

Question 9

Rainbows exist because light is

Accepted Answer

A) reflected. 
B) refracted. 
C) both 
D) neither 
A) reflected. 
B) refracted. 
C) both 
D) neither

Question 10

If molecules in the sky scattered red-orange light instead of blue light, sunsets would be

Accepted Answer

A) orange. 
B) yellow. 
C) green. 
D) blue. 
E) none of the above 
A) orange. 
B) yellow. 
C) green. 
D) blue. 
E) none of the above

Question 11

Colors seen on TV result from color

Accepted Answer

A) addition. 
B) subtraction. 
C) either 
D) neither 
A) addition. 
B) subtraction. 
C) either 
D) neither

Question 12

If the atmosphere were about 40 times thicker, at noon the Sun would appear

Accepted Answer

A) red-orange. 
B) orange-green. 
C) green-blue. 
D) blue-violet. 
E) none of the above 
A) red-orange. 
B) orange-green. 
C) green-blue. 
D) blue-violet. 
E) none of the above

Question 13

When you look at yourself in a pocket mirror, and then hold the mirror farther away, you see

Accepted Answer

A) more of yourself. 
B) less of yourself. 
C) the same amount of yourself. 
A) more of yourself. 
B) less of yourself. 
C) the same amount of yourself.

Question 14

Different colors of light correspond to different light

Accepted Answer

A) velocities. 
B) intensities. 
C) polarities. 
D) frequencies. 
E) none of the above 
A) velocities. 
B) intensities. 
C) polarities. 
D) frequencies. 
E) none of the above

Question 15

The solar radiation curve is a graph of

Accepted Answer

A) colors of sunlight versus their frequencies. 
B) colors of sunlight versus their wavelengths. 
C) the path of the Sun about Earth. 
D) brightness versus frequency. 
E) intensity versus distance from the Sun. 
A) colors of sunlight versus their frequencies. 
B) colors of sunlight versus their wavelengths. 
C) the path of the Sun about Earth. 
D) brightness versus frequency. 
E) intensity versus distance from the Sun.

Question 16

The color of an opaque object is the same as the light that is

Accepted Answer

A) transmitted. 
B) absorbed. 
C) reflected. 
D) all of the above 
E) none of the above 
A) transmitted. 
B) absorbed. 
C) reflected. 
D) all of the above 
E) none of the above

Question 17

When white light goes from air into water, the color that refracts the most is

Accepted Answer

A) red. 
B) orange. 
C) green. 
D) violet. 
E) all refract the same amount. 
A) red. 
B) orange. 
C) green. 
D) violet. 
E) all refract the same amount.

Question 18

The greenish blue of water is evidence for the

Accepted Answer

A) reflection of greenish-blue light. 
B) reflection of red light. 
C) absorption of greenish-blue light. 
D) absorption of red light. 
E) interaction between green and blue frequencies of light. 
A) reflection of greenish-blue light. 
B) reflection of red light. 
C) absorption of greenish-blue light. 
D) absorption of red light. 
E) interaction between green and blue frequencies of light.

Question 19

Red sunsets are due to light of lower frequencies that

Accepted Answer

A) is scattered from larger particles in the air. 
B) is refracted from larger particles in the air. 
C) is reflected by clouds and relatively large particles in the air. 
D) survive being scattered in the air. 
E) appear reddish orange to the eye. 
A) is scattered from larger particles in the air. 
B) is refracted from larger particles in the air. 
C) is reflected by clouds and relatively large particles in the air. 
D) survive being scattered in the air. 
E) appear reddish orange to the eye.

Question 20

Rainbows are not usually seen as complete circles because

Accepted Answer

A) the ground is usually in the way. 
B) they are actually elliptical. 
C) they have no bottom part. 
D) raindrops are not perfectly round. 
E) rainbows are arched shaped. 
A) the ground is usually in the way. 
B) they are actually elliptical. 
C) they have no bottom part. 
D) raindrops are not perfectly round. 
E) rainbows are arched shaped.

Exam 11: Light

Compared with the speed of light in a vacuum, the speed of light in the empty space between molecules in glass is

Which has the shortest wavelength?

Relative to its average speed in air, the average speed of a beam of light in glass is

A yellow-white candle flame reflected from a piece of red glass shows two images, one from each surface.

The average speed of light is greatest in

What accounts for the additional few minutes of sunlight we experience daily, before sunrise and after sunset?

Object and image for a plane mirror lie

An important feature of red sunsets is the

Rainbows exist because light is

If molecules in the sky scattered red-orange light instead of blue light, sunsets would be

Colors seen on TV result from color

If the atmosphere were about 40 times thicker, at noon the Sun would appear

When you look at yourself in a pocket mirror, and then hold the mirror farther away, you see

Different colors of light correspond to different light

The solar radiation curve is a graph of

The color of an opaque object is the same as the light that is

When white light goes from air into water, the color that refracts the most is

The greenish blue of water is evidence for the

Red sunsets are due to light of lower frequencies that

Rainbows are not usually seen as complete circles because

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Timereading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: the Nature of Science

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