Question 1

Magenta light is a mixture of

Accepted Answer

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

Question 2

Polarization is a property of

Accepted Answer

A) transverse waves. 
B) longitudinal waves. 
C) both 
D) neither 
A) transverse waves. 
B) longitudinal waves. 
C) both 
D) neither

Question 3

The sky is blue because air molecules in the sky act as tiny

Accepted Answer

A) mirrors that reflect only blue light. 
B) resonators that scatter blue light. 
C) sources of white light. 
D) prisms. 
E) none of the above 
A) mirrors that reflect only blue light. 
B) resonators that scatter blue light. 
C) sources of white light. 
D) prisms. 
E) none of the above

Question 4

Why is the color of seawater greenish blue?

Accepted Answer

Water is a strong absorber of infrared r

Question 5

The source of electromagnetic waves is vibrating

Accepted Answer

A) electric charges. 
B) atoms. 
C) molecules. 
D) energy fields. 
A) electric charges. 
B) atoms. 
C) molecules. 
D) energy fields.

Question 6

Which has the higher frequency?

Accepted Answer

A) red light. 
B) green light. 
C) blue light. 
D) all the same 
A) red light. 
B) green light. 
C) blue light. 
D) all the same

Question 7

The polarization axes of ordinary sunglasses are

Accepted Answer

A) vertical. 
B) horizontal. 
C) at right angles to each other. 
A) vertical. 
B) horizontal. 
C) at right angles to each other.

Question 8

Electromagnetic waves 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 9

Which of the following is fundamentally different from the others?

Accepted Answer

A) sound waves 
B) X rays 
C) gamma rays 
D) light waves 
E) radio waves 
A) sound waves 
B) X rays 
C) gamma rays 
D) light waves 
E) radio waves

Question 10

The whiteness of clouds is evidence in the clouds for a variety of

Accepted Answer

A) particle sizes. 
B) molecules. 
C) "seeds" upon which condensation of cloud material forms. 
D) light intensities. 
E) water prisms. 
A) particle sizes. 
B) molecules. 
C) "seeds" upon which condensation of cloud material forms. 
D) light intensities. 
E) water prisms.

Question 11

Reflected light from the Moon in a lake often appears as a vertical column when the water is

Accepted Answer

A) perfectly still. 
B) slightly rough. 
C) very rough-churning with waves. 
A) perfectly still. 
B) slightly rough. 
C) very rough-churning with waves.

Question 12

What is a major difference in the effect of wearing polarizing sunglasses versus sunglasses that simply cut down on intensity?

Accepted Answer

Much of the glare from surfaces is polar

Question 13

On a color TV screen, red, green, and blue spots of light produce a full spectrum of colors. What spots are activated to produce yellow? Red? Magenta? White?

Accepted Answer

Yellow is produced by simultan

Question 14

Colors seen on the cover of our physical science book result from color

Accepted Answer

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

Question 15

A whitish sky is evidence that the atmosphere contains

Accepted Answer

A) predominantly small particles. 
B) predominantly large particles. 
C) a mixture of particle sizes. 
D) water vapor. 
E) pollutants. 
A) predominantly small particles. 
B) predominantly large particles. 
C) a mixture of particle sizes. 
D) water vapor. 
E) pollutants.

Question 16

Which of the following occupies the smallest percentage of the electromagnetic spectrum?

Accepted Answer

A) radio waves 
B) microwaves 
C) visible light 
D) gamma rays 
A) radio waves 
B) microwaves 
C) visible light 
D) gamma rays

Question 17

A variety of sunset colors is evidence for a variety of

Accepted Answer

A) elements in the Sun. 
B) apparent atmospheric thicknesses. 
C) atmospheric particle sizes. 
D) atmospheric temperatures. 
E) primary colors. 
A) elements in the Sun. 
B) apparent atmospheric thicknesses. 
C) atmospheric particle sizes. 
D) atmospheric temperatures. 
E) primary colors.

Question 18

Compared to the wavelength of incident light, diffuse reflection occurs when the size of surface irregularities is

Accepted Answer

A) smaller. 
B) larger. 
C) about the same. 
A) smaller. 
B) larger. 
C) about the same.

Question 19

A single raindrop illuminated by sunshine disperses

Accepted Answer

A) a single color. 
B) either low, middle, or high frequency colors in most cases. 
C) all the colors of the rainbow. 
A) a single color. 
B) either low, middle, or high frequency colors in most cases. 
C) all the colors of the rainbow.

Question 20

The main difference between a radio wave and a sound wave is

Accepted Answer

A) frequency. 
B) wavelength. 
C) energy. 
D) amplitude. 
E) basic nature. 
A) frequency. 
B) wavelength. 
C) energy. 
D) amplitude. 
E) basic nature.

Exam 11: Light

Magenta light is a mixture of

Polarization is a property of

The sky is blue because air molecules in the sky act as tiny

Why is the color of seawater greenish blue?

The source of electromagnetic waves is vibrating

Which has the higher frequency?

The polarization axes of ordinary sunglasses are

Electromagnetic waves can travel in

Which of the following is fundamentally different from the others?

The whiteness of clouds is evidence in the clouds for a variety of

Reflected light from the Moon in a lake often appears as a vertical column when the water is

What is a major difference in the effect of wearing polarizing sunglasses versus sunglasses that simply cut down on intensity?

On a color TV screen, red, green, and blue spots of light produce a full spectrum of colors. What spots are activated to produce yellow? Red? Magenta? White?

Colors seen on the cover of our physical science book result from color

A whitish sky is evidence that the atmosphere contains

Which of the following occupies the smallest percentage of the electromagnetic spectrum?

A variety of sunset colors is evidence for a variety of

Compared to the wavelength of incident light, diffuse reflection occurs when the size of surface irregularities is

A single raindrop illuminated by sunshine disperses

The main difference between a radio wave and a sound wave is

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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