Question 1

The period of the second hand on a clock is

Accepted Answer

A) 1 s. 
B) 1/60 s. 
C) 60 s. 
D) 3600 s. 
E) 12 h. 
A) 1 s. 
B) 1/60 s. 
C) 60 s. 
D) 3600 s. 
E) 12 h.

Question 2

Radio waves travel at the speed of light, 300,000 km/s. The wavelength of a radio wave received at 100 MHz is

Accepted Answer

A) 0.3 m. 
B) 3.0 m. 
C) 30 m. 
D) 300 m. 
E) none of the above 
A) 0.3 m. 
B) 3.0 m. 
C) 30 m. 
D) 300 m. 
E) none of the above

Question 3

A dolphin perceives its environment by the sense of

Accepted Answer

A) sight. 
B) sound. 
C) both 
D) neither 
A) sight. 
B) sound. 
C) both 
D) neither

Question 4

What beat frequency is produced when a 240-Hz and a 246-Hz tuning fork are sounded together?

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 5

Compressions and rarefactions are characteristic of

Accepted Answer

A) longitudinal waves. 
B) transverse waves. 
C) both 
D) neither 
A) longitudinal waves. 
B) transverse waves. 
C) both 
D) neither

Question 6

When we consider the distance a pendulum swings to and fro we're talking about the pendulum's

Accepted Answer

A) frequency. 
B) period. 
C) wavelength. 
D) amplitude. 
A) frequency. 
B) period. 
C) wavelength. 
D) amplitude.

Question 7

A 340-Hz sound wave travels at 340 m/s in air with a wavelength of

Accepted Answer

A) 1 m. 
B) 10 m. 
C) 100 m. 
D) 1000 m. 
E) none of the above 
A) 1 m. 
B) 10 m. 
C) 100 m. 
D) 1000 m. 
E) none of the above

Question 8

A shock wave is produced when the speed of an object

Accepted Answer

A) matches the speed of sound in air. 
B) exceeds the speed of sound in air. 
C) is less than the speed of sound in air. 
D) none of the above 
A) matches the speed of sound in air. 
B) exceeds the speed of sound in air. 
C) is less than the speed of sound in air. 
D) none of the above

Question 9

When a pendulum clock at sea level is placed at the top of a high mountain, it will

Accepted Answer

A) gain time. 
B) lose time. 
C) neither 
A) gain time. 
B) lose time. 
C) neither

Question 10

The object with the natural frequency of higher pitch is a

Accepted Answer

A) small bell. 
B) large bell. 
C) either 
D) neither 
A) small bell. 
B) large bell. 
C) either 
D) neither

Question 11

Sound travels faster in

Accepted Answer

A) air. 
B) water. 
C) steel. 
D) a vacuum. 
E) same in each 
A) air. 
B) water. 
C) steel. 
D) a vacuum. 
E) same in each

Question 12

Sound waves can interfere with one another so that no sound is produced.

Accepted Answer

A) True 
B) False 
A) True 
B) False

Question 13

In designing a music hall, an acoustical engineer is concerned with

Accepted Answer

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

Question 14

Sound travels fastest in

Accepted Answer

A) water vapor 
B) water 
C) ice 
A) water vapor 
B) water 
C) ice

Question 15

A 1056-Hz tuning fork is sounded when a piano note is struck. You hear three beats per second. What is the frequency of the piano string?

Accepted Answer

A) 1053 Hz 
B) 1056 Hz 
C) 1059 Hz 
D) 2112 Hz 
E) not enough information 
A) 1053 Hz 
B) 1056 Hz 
C) 1059 Hz 
D) 2112 Hz 
E) not enough information

Question 16

As a train of water waves goes by, a piece of cork floating on the water bobs up and down one complete cycle each second. The waves are 2 m long. What is the speed of the wave?

Accepted Answer

A) 0.25 m/s 
B) 0.50 m/s 
C) 1.0 m/s 
D) 2 m/s 
E) 4 m/s 
A) 0.25 m/s 
B) 0.50 m/s 
C) 1.0 m/s 
D) 2 m/s 
E) 4 m/s

Question 17

A general rule for estimating the distance in kilometers between an observer and a lightning bolt is to count the number of seconds between seeing the lightning and hearing it, and dividing by

Accepted Answer

A) 2. 
B) 3. 
C) 4. 
D) 5. 
E) none of the above 
A) 2. 
B) 3. 
C) 4. 
D) 5. 
E) none of the above

Question 18

When we consider how frequently a pendulum swings to and fro we're talking about its

Accepted Answer

A) frequency. 
B) period. 
C) wavelength. 
D) amplitude. 
A) frequency. 
B) period. 
C) wavelength. 
D) amplitude.

Question 19

What is wave interference, and the two types of wave interference?

Accepted Answer

Wave interference is the result of two o

Question 20

A wave oscillates up and down two complete cycles each 1 s. If the wave travels an average distance of 6 m in 1 s, its wavelength is

Accepted Answer

A) 0.5 m. 
B) 1 m. 
C) 2 m. 
D) 3 m. 
E) 6 m. 
A) 0.5 m. 
B) 1 m. 
C) 2 m. 
D) 3 m. 
E) 6 m.

Exam 10: Waves and Sound

The period of the second hand on a clock is

Radio waves travel at the speed of light, 300,000 km/s. The wavelength of a radio wave received at 100 MHz is

A dolphin perceives its environment by the sense of

What beat frequency is produced when a 240-Hz and a 246-Hz tuning fork are sounded together?

Compressions and rarefactions are characteristic of

When we consider the distance a pendulum swings to and fro we're talking about the pendulum's

A 340-Hz sound wave travels at 340 m/s in air with a wavelength of

A shock wave is produced when the speed of an object

When a pendulum clock at sea level is placed at the top of a high mountain, it will

The object with the natural frequency of higher pitch is a

Sound travels faster in

Sound waves can interfere with one another so that no sound is produced.

In designing a music hall, an acoustical engineer is concerned with

Sound travels fastest in

A 1056-Hz tuning fork is sounded when a piano note is struck. You hear three beats per second. What is the frequency of the piano string?

As a train of water waves goes by, a piece of cork floating on the water bobs up and down one complete cycle each second. The waves are 2 m long. What is the speed of the wave?

A general rule for estimating the distance in kilometers between an observer and a lightning bolt is to count the number of seconds between seeing the lightning and hearing it, and dividing by

When we consider how frequently a pendulum swings to and fro we're talking about its

What is wave interference, and the two types of wave interference?

A wave oscillates up and down two complete cycles each 1 s. If the wave travels an average distance of 6 m in 1 s, its wavelength 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