Question 1

The colors dispersed by a prism are due to different light

Accepted Answer

A) speeds inside the prism. 
B) directions inside the prism. 
C) energies inside the prism. 
D) none of the above 
A) speeds inside the prism. 
B) directions inside the prism. 
C) energies inside the prism. 
D) none of the above

Question 2

When a mirror with a fixed beam on it is rotated through a certain angle, the reflected beam is rotated through an angle

Accepted Answer

A) equal to the angle of rotation. 
B) twice as much. 
C) four times as much. 
D) none of the above 
A) equal to the angle of rotation. 
B) twice as much. 
C) four times as much. 
D) none of the above

Question 3

What are the three primary colors for light addition? What colors appear when light of only two primary colors are shone on a white screen? How would the color purple be produced?

Accepted Answer

The three primary colors are red, green,

Question 4

Explain why the sky is blue.

Accepted Answer

Nitrogen and oxygen molecules in the atm

Question 5

Atmospheric refraction makes the daylight hours

Accepted Answer

A) longer. 
B) shorter. 
C) neither 
A) longer. 
B) shorter. 
C) neither

Question 6

Light refracts when traveling from air into glass due to changes in light's

Accepted Answer

A) intensity. 
B) wavelength. 
C) frequency. 
D) velocity. 
E) amplitude. 
A) intensity. 
B) wavelength. 
C) frequency. 
D) velocity. 
E) amplitude.

Question 7

Distant dark-colored hills appear blue due to the color of the

Accepted Answer

A) atmosphere between the observer and the dark hills. 
B) selectively reflected light that reaches a distant observer. 
C) reflected light that survives scattering. 
D) sky that is reflected off the hills. 
A) atmosphere between the observer and the dark hills. 
B) selectively reflected light that reaches a distant observer. 
C) reflected light that survives scattering. 
D) sky that is reflected off the hills.

Question 8

A wave with a high frequency has a relatively

Accepted Answer

A) short wavelength. 
B) long wavelength. 
C) both 
D) none of the above 
A) short wavelength. 
B) long wavelength. 
C) both 
D) none of the above

Question 9

A diver shines light up to the surface of a smooth pond at a 10° angle to the normal. Some light passes into the air above, and the part that reflects back into the water makes an angle to the normal of

Accepted Answer

A) less than 10°. 
B) 10°. 
C) more than 10°. 
A) less than 10°. 
B) 10°. 
C) more than 10°.

Question 10

If you wish to spear a red fish with a red laser beam, you should compensate for refraction and aim your laser

Accepted Answer

A) directly at the sighted fish. 
B) above the sighted fish. 
C) below the sighted fish. 
A) directly at the sighted fish. 
B) above the sighted fish. 
C) below the sighted fish.

Question 11

Light travels faster in

Accepted Answer

A) thin air. 
B) dense air. 
C) same in each. 
A) thin air. 
B) dense air. 
C) same in each.

Question 12

When light is refracted, there is a change in its

Accepted Answer

A) frequency. 
B) wavelength. 
C) both 
D) neither 
A) frequency. 
B) wavelength. 
C) both 
D) neither

Question 13

When visible light is incident upon transparent glass, most atoms in the glass

Accepted Answer

A) are forced into vibration. 
B) resonate. 
C) convert the light energy into thermal energy. 
A) are forced into vibration. 
B) resonate. 
C) convert the light energy into thermal energy.

Question 14

Refraction causes the bottom of a swimming pool to appear

Accepted Answer

A) deeper. 
B) more shallow. 
C) neither 
A) deeper. 
B) more shallow. 
C) neither

Question 15

Compared with the light wave that shines on glass, the emerging light is

Accepted Answer

A) identical though not the same light wave. 
B) exactly the same light wave. 
C) a mixture of being the same and different light waves. 
A) identical though not the same light wave. 
B) exactly the same light wave. 
C) a mixture of being the same and different light waves.

Question 16

Relative to radio waves, the velocity of visible light waves in a vacuum is

Accepted Answer

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

Question 17

The twinkling of stars is a result of atmospheric

Accepted Answer

A) reflection. 
B) refraction. 
C) scattering. 
D) dispersion. 
E) aberrations. 
A) reflection. 
B) refraction. 
C) scattering. 
D) dispersion. 
E) aberrations.

Question 18

The fact that you can get sunburned while in the shade is evidence of

Accepted Answer

A) infrared scattering. 
B) infrared absorption. 
C) ultraviolet scattering. 
D) ultraviolet absorption. 
A) infrared scattering. 
B) infrared absorption. 
C) ultraviolet scattering. 
D) ultraviolet absorption.

Question 19

An ideal Polaroid will transmit 50% of nonpolarized incident light. How much light is transmitted by two ideal Polaroids oriented with their axes parallel to each other?

Accepted Answer

A) 0% 
B) 50% 
C) 100% 
D) between 0% and 50% 
E) between 50% and 100% 
A) 0% 
B) 50% 
C) 100% 
D) between 0% and 50% 
E) between 50% and 100%

Question 20

The direction of vibration for an electron and the plane of polarization of the light it emits

Accepted Answer

A) are the same. 
B) are at right angles to each other. 
C) may or may not be at right angles to each other. 
D) are independent of each other. 
A) are the same. 
B) are at right angles to each other. 
C) may or may not be at right angles to each other. 
D) are independent of each other.

Exam 11: Light

The colors dispersed by a prism are due to different light

When a mirror with a fixed beam on it is rotated through a certain angle, the reflected beam is rotated through an angle

What are the three primary colors for light addition? What colors appear when light of only two primary colors are shone on a white screen? How would the color purple be produced?

Explain why the sky is blue.

Atmospheric refraction makes the daylight hours

Light refracts when traveling from air into glass due to changes in light's

Distant dark-colored hills appear blue due to the color of the

A wave with a high frequency has a relatively

A diver shines light up to the surface of a smooth pond at a 10° angle to the normal. Some light passes into the air above, and the part that reflects back into the water makes an angle to the normal of

If you wish to spear a red fish with a red laser beam, you should compensate for refraction and aim your laser

Light travels faster in

When light is refracted, there is a change in its

When visible light is incident upon transparent glass, most atoms in the glass

Refraction causes the bottom of a swimming pool to appear

Compared with the light wave that shines on glass, the emerging light is

Relative to radio waves, the velocity of visible light waves in a vacuum is

The twinkling of stars is a result of atmospheric

The fact that you can get sunburned while in the shade is evidence of

An ideal Polaroid will transmit 50% of nonpolarized incident light. How much light is transmitted by two ideal Polaroids oriented with their axes parallel to each other?

The direction of vibration for an electron and the plane of polarization of the light it emits

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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