Question 1

A wave travels an average distance of 1 m in 1 s with a frequency of 1 Hz. Its amplitude is

Accepted Answer

A) less than 1 m. 
B) 1 m. 
C) more than 1 m. 
D) not enough information 
A) less than 1 m. 
B) 1 m. 
C) more than 1 m. 
D) not enough information

Question 2

A sonic boom can NOT be produced by

Accepted Answer

A) an aircraft flying slower than the speed of sound. 
B) a whip. 
C) a speeding bullet. 
D) all of the above 
A) an aircraft flying slower than the speed of sound. 
B) a whip. 
C) a speeding bullet. 
D) all of the above

Question 3

What is an echo, and why is it weaker than the original sound?

Accepted Answer

An echo is reflected sound. Because soun

Question 4

Distinguish between a transverse wave and a longitudinal wave. Give examples of each.

Accepted Answer

All waves are vibrations in space and ti

Question 5

Refraction of sound can occur in

Accepted Answer

A) air. 
B) water. 
C) both 
D) neither 
A) air. 
B) water. 
C) both 
D) neither

Question 6

A compression is a squash and a rarefaction is a

Accepted Answer

A) crunch. 
B) reverse tension. 
C) stretch. 
A) crunch. 
B) reverse tension. 
C) stretch.

Question 7

Ultrasonic sound that travels at 1530 m/s in ocean water is bounced off the ocean floor and returns to the ship above. If the round trip takes 3 s, the depth of the water is

Accepted Answer

A) 1530 m. 
B) 2295 m. 
C) 3060 m. 
D) 4590 m. 
A) 1530 m. 
B) 2295 m. 
C) 3060 m. 
D) 4590 m.

Question 8

Some singers are able to shatter a crystal chandelier with their voice, which illustrates

Accepted Answer

A) an echo. 
B) sound refraction. 
C) beats. 
D) resonance. 
E) interference. 
A) an echo. 
B) sound refraction. 
C) beats. 
D) resonance. 
E) interference.

Question 9

A Doppler effect occurs when a source of sound moves

Accepted Answer

A) toward you. 
B) away from you. 
C) either 
D) neither 
A) toward you. 
B) away from you. 
C) either 
D) neither

Question 10

A bass fiddle is louder than a harp because of its

Accepted Answer

A) thicker strings. 
B) sounding board. 
C) lower pitch. 
D) all of the above 
E) none of the above 
A) thicker strings. 
B) sounding board. 
C) lower pitch. 
D) all of the above 
E) none of the above

Question 11

The source of all wave motion is a

Accepted Answer

A) wave pattern. 
B) harmonic object. 
C) vibrating object. 
D) region of variable high and low pressure. 
E) none of the above 
A) wave pattern. 
B) harmonic object. 
C) vibrating object. 
D) region of variable high and low pressure. 
E) none of the above

Question 12

Sound travels faster when the air is

Accepted Answer

A) warm. 
B) cold. 
C) neither 
A) warm. 
B) cold. 
C) neither

Question 13

A wave travels an average distance of 6 m in 1 s. What is the wave's velocity?

Accepted Answer

A) less than 0.2 m/s 
B) 1 m/s 
C) 3 m/s 
D) 6 m/s 
E) more than 6 m/s 
A) less than 0.2 m/s 
B) 1 m/s 
C) 3 m/s 
D) 6 m/s 
E) more than 6 m/s

Question 14

If the frequency of a certain wave is 10 Hz, its period is

Accepted Answer

A) 0.1 s. 
B) 10 s. 
C) 100 s. 
D) none of the above 
A) 0.1 s. 
B) 10 s. 
C) 100 s. 
D) none of the above

Question 15

A mass on the end of a spring bobs up and down 1 complete cycle every 2 s. Its frequency is

Accepted Answer

A) 0.5 Hz. 
B) 2 Hz. 
C) neither 
A) 0.5 Hz. 
B) 2 Hz. 
C) neither

Question 16

Why will a struck tuning fork sound louder when it is held against a table?

Accepted Answer

The sound is louder because th

Question 17

The range of human hearing is about

Accepted Answer

A) 10 Hz - 10,000 Hz. 
B) 20 Hz - 20,000 Hz. 
C) 40 Hz - 40,000 Hz. 
D) all of the above, depending on the person 
A) 10 Hz - 10,000 Hz. 
B) 20 Hz - 20,000 Hz. 
C) 40 Hz - 40,000 Hz. 
D) all of the above, depending on the person

Question 18

The loudness of a musical sound is a measure of 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 19

Suppose you sound a 1056-Hz tuning fork when you strike a note on the piano and hear 2 beats/second. You tighten the piano string very slightly and now hear 3 beats/second. What is the frequency of the piano string?

Accepted Answer

A) 1053 Hz 
B) 1054 Hz 
C) 1056 Hz 
D) 1058 Hz 
E) 1059 Hz 
A) 1053 Hz 
B) 1054 Hz 
C) 1056 Hz 
D) 1058 Hz 
E) 1059 Hz

Question 20

You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the wavelength of the waves

Accepted Answer

A) shortens. 
B) lengthens. 
C) remains the same. 
A) shortens. 
B) lengthens. 
C) remains the same.

Exam 10: Waves and Sound

A wave travels an average distance of 1 m in 1 s with a frequency of 1 Hz. Its amplitude is

A sonic boom can NOT be produced by

What is an echo, and why is it weaker than the original sound?

Distinguish between a transverse wave and a longitudinal wave. Give examples of each.

Refraction of sound can occur in

A compression is a squash and a rarefaction is a

Ultrasonic sound that travels at 1530 m/s in ocean water is bounced off the ocean floor and returns to the ship above. If the round trip takes 3 s, the depth of the water is

Some singers are able to shatter a crystal chandelier with their voice, which illustrates

A Doppler effect occurs when a source of sound moves

A bass fiddle is louder than a harp because of its

The source of all wave motion is a

Sound travels faster when the air is

A wave travels an average distance of 6 m in 1 s. What is the wave's velocity?

If the frequency of a certain wave is 10 Hz, its period is

A mass on the end of a spring bobs up and down 1 complete cycle every 2 s. Its frequency is

Why will a struck tuning fork sound louder when it is held against a table?

The range of human hearing is about

The loudness of a musical sound is a measure of the sound wave's

Suppose you sound a 1056-Hz tuning fork when you strike a note on the piano and hear 2 beats/second. You tighten the piano string very slightly and now hear 3 beats/second. What is the frequency of the piano string?

You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the wavelength of the 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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