Question 1

What is resonance and the conditions for resonance? Give examples.

Accepted Answer

Resonance is an unusually large increase

Question 2

The amplitude of a sound wave is closely related to

Accepted Answer

A) loudness. 
B) pitch. 
C) quality. 
D) timbre. 
E) all of the above 
A) loudness. 
B) pitch. 
C) quality. 
D) timbre. 
E) all of the above

Question 3

What moves from place to place in wave motion is

Accepted Answer

A) energy. 
B) momentum. 
C) pressure. 
D) matter. 
A) energy. 
B) momentum. 
C) pressure. 
D) matter.

Question 4

Which doesn't belong to the same family?

Accepted Answer

A) infrasonic waves 
B) ultrasonic waves 
C) radio waves 
D) shock waves 
E) longitudinal waves 
A) infrasonic waves 
B) ultrasonic waves 
C) radio waves 
D) shock waves 
E) longitudinal waves

Question 5

Show the relationship between wave speed and wave frequency. If the speed of a longitudinal wave is 340 m/s and the frequency is 1000 Hz, what is the wavelength of the wave?

Accepted Answer

Speed = wave frequen

Question 6

The pitch of a musical sound depends on the sound wave's

Accepted Answer

A) wavelength. 
B) frequency. 
C) speed. 
D) amplitude. 
E) all of the above 
A) wavelength. 
B) frequency. 
C) speed. 
D) amplitude. 
E) all of the above

Question 7

What are beats and how are they produced?

Accepted Answer

Beats are the sequence of alternating re

Question 8

Repeatedly tap the side of a drinking glass with a spoon while filling it with water and you will notice that the pitch of the sound

Accepted Answer

A) increases. 
B) decreases. 
C) remains relatively constant. 
A) increases. 
B) decreases. 
C) remains relatively constant.

Question 9

Resonance can be viewed as forced vibration with the

Accepted Answer

A) least amount of energy input. 
B) maximum amount of energy input. 
C) matching of wave amplitudes. 
D) matching of constructive and destructive interference. 
E) minimum beat frequency. 
A) least amount of energy input. 
B) maximum amount of energy input. 
C) matching of wave amplitudes. 
D) matching of constructive and destructive interference. 
E) minimum beat frequency.

Question 10

In Europe an electric razor completes 50 vibrations in 1 s. The frequency of these vibrations is

Accepted Answer

A) 50 Hz with a period of 1/50 s. 
B) 1/50 Hz with a period of 50 s. 
C) 50 Hz with a period of 50 s. 
D) 1/50 Hz with a period of 1/50 s. 
A) 50 Hz with a period of 1/50 s. 
B) 1/50 Hz with a period of 50 s. 
C) 50 Hz with a period of 50 s. 
D) 1/50 Hz with a period of 1/50 s.

Question 11

The pendulum with the greatest frequency has the

Accepted Answer

A) shortest period. 
B) shortest length. 
C) both 
D) neither 
A) shortest period. 
B) shortest length. 
C) both 
D) neither

Question 12

What is the Doppler effect, and how is it produced? Cite two examples.

Accepted Answer

The Doppler effect is change in frequenc

Question 13

For light, a red shift indicates the light source moves

Accepted Answer

A) toward you. 
B) away from you. 
C) at right angles to you. 
D) all of the above 
E) none of the above 
A) toward you. 
B) away from you. 
C) at right angles to you. 
D) all of the above 
E) none of the above

Question 14

A bat chirps to locate a tasty lunch. The chirp travels at 340 m/s and its echo is heard 1 s after the chirp. Distance to the lunch is

Accepted Answer

A) 85 m. 
B) 170 m. 
C) 340 m. 
A) 85 m. 
B) 170 m. 
C) 340 m.

Question 15

Two tuning forks produce sounds of wavelengths 3.4 m and 3.3 m. What beat frequency is produced?

Accepted Answer

A) 0.1 Hz 
B) 1.0 Hz 
C) 2.0 Hz 
D) 3.0 Hz 
E) 4.0 Hz 
A) 0.1 Hz 
B) 1.0 Hz 
C) 2.0 Hz 
D) 3.0 Hz 
E) 4.0 Hz

Question 16

On days when the air nearest the ground is colder than air above, sound waves

Accepted Answer

A) tend to be refracted upward. 
B) tend to be refracted downward. 
C) travel without refraction. 
A) tend to be refracted upward. 
B) tend to be refracted downward. 
C) travel without refraction.

Question 17

During a single period, the distance traveled by a wave is

Accepted Answer

A) one-half wavelength. 
B) one wavelength. 
C) two wavelengths. 
A) one-half wavelength. 
B) one wavelength. 
C) two wavelengths.

Question 18

When the handle of a tuning fork is held solidly against a table, the sound becomes louder and the time the fork keeps vibrating becomes

Accepted Answer

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

Question 19

The medium in which a wave travels

Accepted Answer

A) moves along with the wave. 
B) transmits the wave. 
C) inhibits the wave. 
D) reflects the wave. 
A) moves along with the wave. 
B) transmits the wave. 
C) inhibits the wave. 
D) reflects the wave.

Question 20

A skipper on a boat notices wave crests passing the anchor chain every 5 s. The skipper estimates the distance between crests is 15 m. What is the speed of the water waves?

Accepted Answer

A) 3 m/s 
B) 5 m/s 
C) 15 m/s 
D) not enough information 
A) 3 m/s 
B) 5 m/s 
C) 15 m/s 
D) not enough information

Exam 10: Waves and Sound

What is resonance and the conditions for resonance? Give examples.

The amplitude of a sound wave is closely related to

What moves from place to place in wave motion is

Which doesn't belong to the same family?

Show the relationship between wave speed and wave frequency. If the speed of a longitudinal wave is 340 m/s and the frequency is 1000 Hz, what is the wavelength of the wave?

The pitch of a musical sound depends on the sound wave's

What are beats and how are they produced?

Repeatedly tap the side of a drinking glass with a spoon while filling it with water and you will notice that the pitch of the sound

Resonance can be viewed as forced vibration with the

In Europe an electric razor completes 50 vibrations in 1 s. The frequency of these vibrations is

The pendulum with the greatest frequency has the

What is the Doppler effect, and how is it produced? Cite two examples.

For light, a red shift indicates the light source moves

A bat chirps to locate a tasty lunch. The chirp travels at 340 m/s and its echo is heard 1 s after the chirp. Distance to the lunch is

Two tuning forks produce sounds of wavelengths 3.4 m and 3.3 m. What beat frequency is produced?

On days when the air nearest the ground is colder than air above, sound waves

During a single period, the distance traveled by a wave is

When the handle of a tuning fork is held solidly against a table, the sound becomes louder and the time the fork keeps vibrating becomes

The medium in which a wave travels

A skipper on a boat notices wave crests passing the anchor chain every 5 s. The skipper estimates the distance between crests is 15 m. What is the speed of the water waves?

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

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