Question 1

A pair of sunglasses and a pair of clear reading glasses are left in the sunlight. The hotter glasses will be the

Accepted Answer

A) sunglasses. 
B) reading glasses. 
C) both of these 
D) neither of these 
A) sunglasses. 
B) reading glasses. 
C) both of these 
D) neither of these A

Question 2

A total solar eclipse occurs for people in the Sun's

Accepted Answer

A) umbra. 
B) penumbra. 
C) none of these 
A) umbra. 
B) penumbra. 
C) none of these A

Question 3

The cones in the retina of the eye are

Accepted Answer

A) most densely packed at the center of vision. 
B) uniformly spread along the visual field. 
C) concentrated along the periphery of vision. 
A) most densely packed at the center of vision. 
B) uniformly spread along the visual field. 
C) concentrated along the periphery of vision. A

Question 4

The round spots of light on the ground beneath a tree on a sunny day are images of

Accepted Answer

A) the openings between leaves above. 
B) nothing in particular. 
C) the Sun. 
A) the openings between leaves above. 
B) nothing in particular. 
C) the Sun.

Question 5

If an electric charge is shaken up and down frequently enough

Accepted Answer

A) sound can be emitted. 
B) light can be emitted. 
C) both of these 
D) neither of these 
A) sound can be emitted. 
B) light can be emitted. 
C) both of these 
D) neither of these

Question 6

What is the wavelength of a 1-hertz electromagnetic wave?

Accepted Answer

A) less than 1 m 
B) 1 m 
C) more than 1 m 
A) less than 1 m 
B) 1 m 
C) more than 1 m

Question 7

Which best shields you from sunburn when at the beach?

Accepted Answer

A) a cloudy day 
B) a sheet of glass between you and the Sun 
C) frequent turning of your body 
D) all of the above 
E) none of the above 
A) a cloudy day 
B) a sheet of glass between you and the Sun 
C) frequent turning of your body 
D) all of the above 
E) none of the above

Question 8

Which of the following cannot travel in a vacuum?

Accepted Answer

A) a light wave 
B) a sound wave 
C) a radio wave 
D) all can 
E) none can 
A) a light wave 
B) a sound wave 
C) a radio wave 
D) all can 
E) none can

Question 9

A main difference between a radio wave and a light wave is

Accepted Answer

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

Question 10

Compared to ultraviolet waves, the frequency of infrared waves is

Accepted Answer

A) lower. 
B) the same. 
C) higher. 
A) lower. 
B) the same. 
C) higher.

Question 11

Electromagnetic waves consist of

Accepted Answer

A) compressions and rarefactions of electromagnetic pulses. 
B) oscillating electric and magnetic fields. 
C) particles of light energy. 
D) high-frequency sound waves. 
A) compressions and rarefactions of electromagnetic pulses. 
B) oscillating electric and magnetic fields. 
C) particles of light energy. 
D) high-frequency sound waves.

Question 12

When ultraviolet light is incident upon glass, atoms in the glass

Accepted Answer

A) are forced into vibration. 
B) resonate. 
C) pass the light energy along practically undiminished. 
D) freely absorb and re-emit most of the ultraviolet light. 
A) are forced into vibration. 
B) resonate. 
C) pass the light energy along practically undiminished. 
D) freely absorb and re-emit most of the ultraviolet light.

Question 13

If an electron vibrates up and down 1000 times each second, it generates an electromagnetic wave having a

Accepted Answer

A) period of 1000 s. 
B) speed of 1000 m/s. 
C) wavelength of 1000 m. 
D) frequency of 1000 Hz. 
E) wavelength of 1000 km. 
A) period of 1000 s. 
B) speed of 1000 m/s. 
C) wavelength of 1000 m. 
D) frequency of 1000 Hz. 
E) wavelength of 1000 km.

Question 14

Infrared waves are often called heat waves because they

Accepted Answer

A) emanate from relatively hot sources. 
B) consist of frequencies lower than those of visible light. 
C) induce resonance in molecules and increase internal energy in a substance. 
D) are the predominant waves emitted by the sun. 
A) emanate from relatively hot sources. 
B) consist of frequencies lower than those of visible light. 
C) induce resonance in molecules and increase internal energy in a substance. 
D) are the predominant waves emitted by the sun.

Question 15

Compared to ultraviolet waves, the wavelength of infrared waves is

Accepted Answer

A) shorter. 
B) the same. 
C) longer. 
A) shorter. 
B) the same. 
C) longer.

Question 16

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

Accepted Answer

A) frequency. 
B) wavelength. 
C) energy. 
D) amplitude. 
E) medium or no medium. 
A) frequency. 
B) wavelength. 
C) energy. 
D) amplitude. 
E) medium or no medium.

Question 17

An annular eclipse of the Sun occurs when the Moon doesn't quite cover the Sun in the zone of totality. This means that the Moon is

Accepted Answer

A) closer than usual to Earth. 
B) farther than usual from Earth. 
C) none of these 
A) closer than usual to Earth. 
B) farther than usual from Earth. 
C) none of these

Question 18

Red-hot and blue-hot stars appear white to the eye because

Accepted Answer

A) the eye has difficulty seeing color at night. 
B) they are too dim to fire the cones. 
C) they are too dim to fire the rods. 
D) they are overwhelmed by the blackness of the nighttime sky. 
E) eye receptivity peaks in the yellow-green part of the spectrum. 
A) the eye has difficulty seeing color at night. 
B) they are too dim to fire the cones. 
C) they are too dim to fire the rods. 
D) they are overwhelmed by the blackness of the nighttime sky. 
E) eye receptivity peaks in the yellow-green part of the spectrum.

Question 19

A partial solar eclipse occurs for people in the Sun's

Accepted Answer

A) umbra. 
B) penumbra. 
C) none of these 
A) umbra. 
B) penumbra. 
C) none of these

Question 20

A changing electric field induces a changing

Accepted Answer

A) magnetic field. 
B) electromagnetic field. 
C) both of these 
D) neither of these 
A) magnetic field. 
B) electromagnetic field. 
C) both of these 
D) neither of these

Exam 26: Properties of Light

A pair of sunglasses and a pair of clear reading glasses are left in the sunlight. The hotter glasses will be the

A total solar eclipse occurs for people in the Sun's

The cones in the retina of the eye are

The round spots of light on the ground beneath a tree on a sunny day are images of

If an electric charge is shaken up and down frequently enough

What is the wavelength of a 1-hertz electromagnetic wave?

Which best shields you from sunburn when at the beach?

Which of the following cannot travel in a vacuum?

A main difference between a radio wave and a light wave is

Compared to ultraviolet waves, the frequency of infrared waves is

Electromagnetic waves consist of

When ultraviolet light is incident upon glass, atoms in the glass

If an electron vibrates up and down 1000 times each second, it generates an electromagnetic wave having a

Infrared waves are often called heat waves because they

Compared to ultraviolet waves, the wavelength of infrared waves is

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

An annular eclipse of the Sun occurs when the Moon doesn't quite cover the Sun in the zone of totality. This means that the Moon is

Red-hot and blue-hot stars appear white to the eye because

A partial solar eclipse occurs for people in the Sun's

A changing electric field induces a changing

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Gravity

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature, Heat, and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Systems of Measurement

Filters