Question 1

When light reflects from a polished surface, there is a change in its

Accepted Answer

A) frequency. 
B) wavelength. 
C) speed. 
D) all of the above 
E) none of the above 
A) frequency. 
B) wavelength. 
C) speed. 
D) all of the above 
E) none of the above E

Question 2

The glare seen from water is largely

Accepted Answer

A) horizontally polarized. 
B) vertically polarized. 
C) nonpolarized. 
A) horizontally polarized. 
B) vertically polarized. 
C) nonpolarized. A

Question 3

Describe a model for explaining how light is transmitted through glass.

Accepted Answer

According to the model of light presented in the textbook, when a photon is incident on a glass surface, it is absorbed by a glass molecule or atom and forces it into vibration. This vibration results in the emission of an indistinguishable photon, which travels to the next atom or molecule to repeat the process. A cascading process of absorption and reemission occurs until the glass molecule at the far surface absorbs and reemits an identical photon.

Question 4

In the law of reflection, the incident ray, the reflected ray, and the normal between them

Accepted Answer

A) lie in the same plane. 
B) may or may not lie in the same plane. 
C) lie in planes that are perpendicular to one another. 
A) lie in the same plane. 
B) may or may not lie in the same plane. 
C) lie in planes that are perpendicular to one another.

Question 5

If sunlight were green instead of white, the most comfortable color to wear on a hot day would be

Accepted Answer

A) magenta. 
B) yellow. 
C) green. 
D) blue. 
E) violet. 
A) magenta. 
B) yellow. 
C) green. 
D) blue. 
E) violet.

Question 6

A blue object will appear black when illuminated with

Accepted Answer

A) blue light. 
B) cyan light. 
C) yellow light. 
D) light. 
E) none of the above 
A) blue light. 
B) cyan light. 
C) yellow light. 
D) light. 
E) none of the above

Question 7

The amount of light from an incandescent lamp that is transmitted through an ideal Polaroid filter is half, and through a real Polaroid filter is

Accepted Answer

A) less than half. 
B) more than half. 
C) half. 
A) less than half. 
B) more than half. 
C) half.

Question 8

The shortest plane mirror in which you can see your entire image is

Accepted Answer

A) half your height. 
B) 3/4 your height. 
C) 1/3 your height. 
D) equal to your height. 
E) dependent on your distance from the mirror. 
A) half your height. 
B) 3/4 your height. 
C) 1/3 your height. 
D) equal to your height. 
E) dependent on your distance from the mirror.

Question 9

The amount of light reflected from the front surface of common window glass is about

Accepted Answer

A) 4%. 
B) 8%. 
C) 40%. 
D) 92%. 
E) 96%. 
A) 4%. 
B) 8%. 
C) 40%. 
D) 92%. 
E) 96%.

Question 10

When a light beam emerges from water into air, the average light speed

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same.

Question 11

Complementary colors are two colors that

Accepted Answer

A) share the same color scheme. 
B) are additive primary colors. 
C) are subtractive primary colors. 
D) produce white light when added. 
A) share the same color scheme. 
B) are additive primary colors. 
C) are subtractive primary colors. 
D) produce white light when added.

Question 12

It is difficult to see the roadway in front of you when you are driving on a rainy night mainly because

Accepted Answer

A) light scatters from raindrops. 
B) of added condensation on the inner surface of the windshield. 
C) the film of water on your windshield is an additional reflecting surface. 
D) the film of water on the roadway makes the road less diffuse. 
E) none of the above 
A) light scatters from raindrops. 
B) of added condensation on the inner surface of the windshield. 
C) the film of water on your windshield is an additional reflecting surface. 
D) the film of water on the roadway makes the road less diffuse. 
E) none of the above

Question 13

A red crab crawling very deep in the water where sunlight is very dim appears

Accepted Answer

A) red. 
B) orange. 
C) cyan. 
D) brown. 
E) black. 
A) red. 
B) orange. 
C) cyan. 
D) brown. 
E) black.

Question 14

Both a radio wave and light wave have identical

Accepted Answer

A) speeds. 
B) wavelengths. 
C) frequencies. 
D) all of the above 
E) none of the above 
A) speeds. 
B) wavelengths. 
C) frequencies. 
D) all of the above 
E) none of the above

Question 15

Both sound and light can travel in

Accepted Answer

A) a vacuum. 
B) water. 
C) both 
D) none of the above 
A) a vacuum. 
B) water. 
C) both 
D) none of the above

Question 16

A wave with a long wavelength has a relatively

Accepted Answer

A) low frequency. 
B) high frequency. 
C) both 
D) neither 
A) low frequency. 
B) high frequency. 
C) both 
D) neither

Question 17

The fact that you can get sunburned while submerged in water is evidence that water

Accepted Answer

A) absorbs infrared light. 
B) transmits infrared light. 
C) absorbs ultraviolet light. 
D) transmits ultraviolet light. 
A) absorbs infrared light. 
B) transmits infrared light. 
C) absorbs ultraviolet light. 
D) transmits ultraviolet light.

Question 18

Ninety-five percent of light incident on a mirror is reflected. How much light is reflected from three mirrors in succession?

Accepted Answer

A) 81% 
B) 85% 
C) 86% 
D) 90% 
E) 95% 
A) 81% 
B) 85% 
C) 86% 
D) 90% 
E) 95%

Question 19

The frequency of an electromagnetic wave and the frequency of the vibrating electrons that produce it are

Accepted Answer

A) nearly the same. 
B) the same. 
C) quite different. 
A) nearly the same. 
B) the same. 
C) quite different.

Question 20

Light will not pass through a pair of Polaroids when their axes are

Accepted Answer

A) parallel. 
B) perpendicular. 
C) 45° to each other. 
D) all of the above 
E) none of the above 
A) parallel. 
B) perpendicular. 
C) 45° to each other. 
D) all of the above 
E) none of the above

Exam 11: Light

When light reflects from a polished surface, there is a change in its

The glare seen from water is largely

Describe a model for explaining how light is transmitted through glass.

In the law of reflection, the incident ray, the reflected ray, and the normal between them

If sunlight were green instead of white, the most comfortable color to wear on a hot day would be

A blue object will appear black when illuminated with

The amount of light from an incandescent lamp that is transmitted through an ideal Polaroid filter is half, and through a real Polaroid filter is

The shortest plane mirror in which you can see your entire image is

The amount of light reflected from the front surface of common window glass is about

When a light beam emerges from water into air, the average light speed

Complementary colors are two colors that

It is difficult to see the roadway in front of you when you are driving on a rainy night mainly because

A red crab crawling very deep in the water where sunlight is very dim appears

Both a radio wave and light wave have identical

Both sound and light can travel in

A wave with a long wavelength has a relatively

The fact that you can get sunburned while submerged in water is evidence that water

Ninety-five percent of light incident on a mirror is reflected. How much light is reflected from three mirrors in succession?

The frequency of an electromagnetic wave and the frequency of the vibrating electrons that produce it are

Light will not pass through a pair of Polaroids when their axes are

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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