Question 1

The explanation for all types of refraction involves a change in

Accepted Answer

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

Question 2

Sound waves cannot travel in

Accepted Answer

A) air. 
B) water. 
C) steel. 
D) a vacuum. 
A) air. 
B) water. 
C) steel. 
D) a vacuum. D

Question 3

Double the frequency of sound and you also double its

Accepted Answer

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

Question 4

When you tune a radio to a certain station, you match the frequency of the internal electrical circuit to the frequency of that radio station, which illustrates

Accepted Answer

A) forced vibrations. 
B) resonance. 
C) beats. 
D) reverberation. 
E) wave interference. 
A) forced vibrations. 
B) resonance. 
C) beats. 
D) reverberation. 
E) wave interference.

Question 5

The vibrations of a transverse wave move in a direction

Accepted Answer

A) along the direction of wave travel. 
B) at right angles to the direction of wave travel. 
C) opposite to wave travel. 
A) along the direction of wave travel. 
B) at right angles to the direction of wave travel. 
C) opposite to wave travel.

Question 6

A sound source of high frequency emits a high

Accepted Answer

A) speed. 
B) amplitude. 
C) pitch. 
D) all of the above 
E) none of the above 
A) speed. 
B) amplitude. 
C) pitch. 
D) all of the above 
E) none of the above

Question 7

The least amount of energy is required to produce forced vibration in an object

Accepted Answer

A) below its natural frequency. 
B) at its natural frequency. 
C) above its natural frequency. 
A) below its natural frequency. 
B) at its natural frequency. 
C) above its natural frequency.

Question 8

Reverberation is a phenomenon you would likely to hear if you sing in the

Accepted Answer

A) shower. 
B) desert. 
C) tundra. 
A) shower. 
B) desert. 
C) tundra.

Question 9

A sound wave is a

Accepted Answer

A) longitudinal wave. 
B) transverse wave. 
C) standing wave. 
D) shock wave. 
E) none of the above 
A) longitudinal wave. 
B) transverse wave. 
C) standing wave. 
D) shock wave. 
E) none of the above

Question 10

To say that one wave is out of phase with another is to say that the waves are

Accepted Answer

A) of different amplitudes. 
B) of different frequencies. 
C) of different wavelengths. 
D) out of step. 
E) all of the above 
A) of different amplitudes. 
B) of different frequencies. 
C) of different wavelengths. 
D) out of step. 
E) all of the above

Question 11

A weight suspended from a spring bobs up and down one complete cycle every 2 s. Its period is

Accepted Answer

A) 0.5 s. 
B) 1 s. 
C) 2 s. 
D) none of the above 
A) 0.5 s. 
B) 1 s. 
C) 2 s. 
D) none of the above

Question 12

A node is a position of

Accepted Answer

A) minimum amplitude. 
B) maximum amplitude. 
C) neither 
A) minimum amplitude. 
B) maximum amplitude. 
C) neither

Question 13

Sound refraction depends on the speed of sound being

Accepted Answer

A) constant. 
B) variable. 
C) proportional to frequency. 
D) inversely proportional to wavelength. 
E) none of the above 
A) constant. 
B) variable. 
C) proportional to frequency. 
D) inversely proportional to wavelength. 
E) none of the above

Question 14

In perceiving its environment, a dolphin makes use of

Accepted Answer

A) echoes. 
B) the Doppler effect. 
C) ultrasound. 
D) all of the above 
E) none of the above 
A) echoes. 
B) the Doppler effect. 
C) ultrasound. 
D) all of the above 
E) none of the above

Question 15

Troops break step when marching across a bridge to prevent

Accepted Answer

A) interference. 
B) resonance. 
C) wave motion. 
D) frequency distortion. 
A) interference. 
B) resonance. 
C) wave motion. 
D) frequency distortion.

Question 16

If you double the frequency of a vibrating object, its period

Accepted Answer

A) doubles. 
B) is half. 
C) is one quarter. 
A) doubles. 
B) is half. 
C) is one quarter.

Question 17

A standing wave occurs when

Accepted Answer

A) two waves overlap. 
B) a wave reflects upon itself. 
C) the speed of the wave is zero or near zero. 
D) the amplitude of a wave exceeds its wavelength. 
A) two waves overlap. 
B) a wave reflects upon itself. 
C) the speed of the wave is zero or near zero. 
D) the amplitude of a wave exceeds its wavelength.

Question 18

The fundamental frequency of a violin string is 440 Hz. The frequency of its second harmonic is

Accepted Answer

A) 220 Hz. 
B) 440 Hz. 
C) 880 Hz. 
A) 220 Hz. 
B) 440 Hz. 
C) 880 Hz.

Question 19

The source of all sounds is something that is

Accepted Answer

A) accelerating. 
B) moving. 
C) vibrating. 
D) undergoing simple harmonic motion. 
A) accelerating. 
B) moving. 
C) vibrating. 
D) undergoing simple harmonic motion.

Question 20

While at a concert, a wind blows directly from the orchestra toward you. The wavelength of the sound you hear is

Accepted Answer

A) decreased. 
B) increased. 
C) neither 
A) decreased. 
B) increased. 
C) neither

Exam 10: Waves and Sound

The explanation for all types of refraction involves a change in

Sound waves cannot travel in

Double the frequency of sound and you also double its

When you tune a radio to a certain station, you match the frequency of the internal electrical circuit to the frequency of that radio station, which illustrates

The vibrations of a transverse wave move in a direction

A sound source of high frequency emits a high

The least amount of energy is required to produce forced vibration in an object

Reverberation is a phenomenon you would likely to hear if you sing in the

A sound wave is a

To say that one wave is out of phase with another is to say that the waves are

A weight suspended from a spring bobs up and down one complete cycle every 2 s. Its period is

A node is a position of

Sound refraction depends on the speed of sound being

In perceiving its environment, a dolphin makes use of

Troops break step when marching across a bridge to prevent

If you double the frequency of a vibrating object, its period

A standing wave occurs when

The fundamental frequency of a violin string is 440 Hz. The frequency of its second harmonic is

The source of all sounds is something that is

While at a concert, a wind blows directly from the orchestra toward you. The wavelength of the sound you hear 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

Light

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

Filters