Question 1

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 2

An explosion occurs 34 km away.For sound that travels at 340 m/s,you'll hear the explosion in

Accepted Answer

A) 0.1 s. 
B) 1 s. 
C) 10 s. 
D) 20 s. 
E) more than 20 s. 
A) 0.1 s. 
B) 1 s. 
C) 10 s. 
D) 20 s. 
E) more than 20 s.

Question 3

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 4

Which of the following is not a transverse wave?

Accepted Answer

A) sound 
B) light 
C) radio 
D) all of the above 
E) none of the above 
A) sound 
B) light 
C) radio 
D) all of the above 
E) none of the above

Question 5

A Doppler effect occurs when a source of sound moves

Accepted Answer

A) toward you. 
B) away from you. 
C) either of these 
D) none of the above 
A) toward you. 
B) away from you. 
C) either of these 
D) none of the above

Question 6

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

Accepted Answer

Wave interference is the result of two o

Question 7

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

Accepted Answer

An echo is reflected sound.Because sound

Question 8

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.

Question 9

A dolphin perceives its environment by the sense of

Accepted Answer

A) sight. 
B) sound. 
C) both of these 
D) none of the above 
A) sight. 
B) sound. 
C) both of these 
D) none of the above

Question 10

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 11

As a wave-generating object moves through a medium,the waves behind

Accepted Answer

A) bunch up. 
B) stretch out. 
C) neither of these 
A) bunch up. 
B) stretch out. 
C) neither of these

Question 12

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 13

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 14

The speed of a sound wave in air depends on

Accepted Answer

A) its frequency. 
B) its wavelength. 
C) the air temperature. 
D) all of the above 
E) none of the above 
A) its frequency. 
B) its wavelength. 
C) the air temperature. 
D) all of the above 
E) none of the above

Question 15

A wave barrier is produced in water when the speed of an object

Accepted Answer

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

Question 16

A wave oscillates up and down twice in 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.

Question 17

Identical waves superimposed out of phase produce a wave of decreased

Accepted Answer

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

Question 18

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

Accepted Answer

The Doppler effect is the perceived chan

Question 19

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 20

A boat at anchor is rocked by waves whose crests are 40 m apart and with wave speed 10 m/s.These waves reach the boat once every

Accepted Answer

A) 400 s. 
B) 30 s. 
C) 4 s. 
D) 0.25 s. 
A) 400 s. 
B) 30 s. 
C) 4 s. 
D) 0.25 s.

Exam 10: Waves and Sound

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

An explosion occurs 34 km away.For sound that travels at 340 m/s,you'll hear the explosion in

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

Which of the following is not a transverse wave?

A Doppler effect occurs when a source of sound moves

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

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

Sound waves cannot travel in

A dolphin perceives its environment by the sense of

The source of all sounds is something that is

As a wave-generating object moves through a medium,the waves behind

In perceiving its environment,a dolphin makes use of

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

The speed of a sound wave in air depends on

A wave barrier is produced in water when the speed of an object

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

Identical waves superimposed out of phase produce a wave of decreased

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

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

A boat at anchor is rocked by waves whose crests are 40 m apart and with wave speed 10 m/s.These waves reach the boat once every

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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