Question 1

If you played music under water the wavelength of middle C would be

Accepted Answer

A) lengthened. 
B) shortened. 
C) unaffected. 
D) none of the above 
A) lengthened. 
B) shortened. 
C) unaffected. 
D) none of the above

Question 2

The reflection of sound is

Accepted Answer

A) reverberation. 
B) an echo. 
C) a rare occurrence. 
A) reverberation. 
B) an echo. 
C) a rare occurrence.

Question 3

A floating leaf oscillates up and down twice in 1 s as a water wave of wavelength 10 m passes by.What is the wave's speed?

Accepted Answer

A) 2 m/s 
B) 10 m/s 
C) 20 m/s 
D) 40 m/s 
E) more than 40 m/s 
A) 2 m/s 
B) 10 m/s 
C) 20 m/s 
D) 40 m/s 
E) more than 40 m/s

Question 4

Compared to noise,musical sounds commonly have

Accepted Answer

A) periodic tones. 
B) musical notes. 
C) both of these 
D) neither of these 
A) periodic tones. 
B) musical notes. 
C) both of these 
D) neither of these

Question 5

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 6

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 7

Reverberation is a case of

Accepted Answer

A) sound interference. 
B) forced vibrations. 
C) re-echoed sound. 
D) resonance. 
E) none of the above 
A) sound interference. 
B) forced vibrations. 
C) re-echoed sound. 
D) resonance. 
E) none of the above

Question 8

Reverberation is a phenomenon you would be likely experience while singing in the

Accepted Answer

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

Question 9

A wiggle in time is a

Accepted Answer

A) vibration. 
B) wave. 
C) both of these 
D) none of the above 
A) vibration. 
B) wave. 
C) both of these 
D) none of the above

Question 10

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 11

Why does a sonic boom irritate people on the ground below a supersonic aircraft and not passengers inside the aircraft?

Accepted Answer

People on the ground below encounter the

Question 12

Suzy shakes a rope tied to a wall and produces a standing wave of one loop.The distance between Suzy and the wall is

Accepted Answer

A) one-half a wavelength. 
B) a full wavelength. 
C) more than a full wavelength. 
D) none of the above 
A) one-half a wavelength. 
B) a full wavelength. 
C) more than a full wavelength. 
D) none of the above

Question 13

The number of nodes in a standing wave of three wavelengths,not including the endpoints,is

Accepted Answer

A) 2. 
B) 3. 
C) 4. 
D) 5. 
E) 6. 
A) 2. 
B) 3. 
C) 4. 
D) 5. 
E) 6.

Question 14

What are beats and how are they produced?

Accepted Answer

Beats are the sequence of alternating re

Question 15

What beat frequency is produced by 240-Hz and a 246-Hz tuning forks?

Accepted Answer

A) 6 Hz 
B) 12 Hz 
C) 240 Hz 
D) 245 Hz 
E) none of the above 
A) 6 Hz 
B) 12 Hz 
C) 240 Hz 
D) 245 Hz 
E) none of the above

Question 16

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

Question 17

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 18

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 19

Compressions and rarefactions are characteristic of

Accepted Answer

A) longitudinal waves. 
B) transverse waves. 
C) both of these 
D) none of the above 
A) longitudinal waves. 
B) transverse waves. 
C) both of these 
D) none of the above

Question 20

A blue shift for light indicates that the light source is moving

Accepted Answer

A) toward you. 
B) away from you. 
C) both of these 
D) neither of these 
A) toward you. 
B) away from you. 
C) both of these 
D) neither of these

Exam 10: Waves and Sound

If you played music under water the wavelength of middle C would be

The reflection of sound is

A floating leaf oscillates up and down twice in 1 s as a water wave of wavelength 10 m passes by.What is the wave's speed?

Compared to noise,musical sounds commonly have

A bass fiddle is louder than a harp because of its

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

Reverberation is a case of

Reverberation is a phenomenon you would be likely experience while singing in the

A wiggle in time is a

Which doesn't belong to the same family?

Why does a sonic boom irritate people on the ground below a supersonic aircraft and not passengers inside the aircraft?

Suzy shakes a rope tied to a wall and produces a standing wave of one loop.The distance between Suzy and the wall is

The number of nodes in a standing wave of three wavelengths,not including the endpoints,is

What are beats and how are they produced?

What beat frequency is produced by 240-Hz and a 246-Hz tuning forks?

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?

The amplitude of a sound wave is closely related to

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

Compressions and rarefactions are characteristic of

A blue shift for light indicates that the light source is moving

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 Time - Reading 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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