Question 1

Wave interference occurs for

Accepted Answer

A) sound waves. 
B) light waves. 
C) water waves. 
D) all of the above 
E) none of the above 
A) sound waves. 
B) light waves. 
C) water waves. 
D) all of the above 
E) none of the above

Question 2

In a longitudinal wave, the compressions and rarefactions travel in

Accepted Answer

A) the same direction. 
B) opposite directions. 
C) neither 
A) the same direction. 
B) opposite directions. 
C) neither

Question 3

Sound energy that is not reflected is

Accepted Answer

A) transmitted. 
B) absorbed. 
C) either or both 
A) transmitted. 
B) absorbed. 
C) either or both

Question 4

While at a concert, a wind blows directly from the orchestra toward you. You hear the average frequencies of sound

Accepted Answer

A) decreased. 
B) increased. 
C) neither 
A) decreased. 
B) increased. 
C) neither

Question 5

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 6

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

Accepted Answer

People below encounter the aircraft's sh

Question 7

A floating leaf oscillates up and down 2 complete cycles 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 8

A floating leaf oscillates up and down two complete cycles each 1 s as a water wave passes by. What is the wave's frequency?

Accepted Answer

A) 0.5 Hz 
B) 1 Hz 
C) 2 Hz 
D) 3 Hz 
E) 6 Hz 
A) 0.5 Hz 
B) 1 Hz 
C) 2 Hz 
D) 3 Hz 
E) 6 Hz

Question 9

The natural frequency of an object depends on its

Accepted Answer

A) elasticity. 
B) size and shape. 
C) both 
D) neither 
A) elasticity. 
B) size and shape. 
C) both 
D) neither

Question 10

The phenomenon of beats results from sound

Accepted Answer

A) refraction. 
B) reflection. 
C) interference. 
D) all of the above 
E) none of the above 
A) refraction. 
B) reflection. 
C) interference. 
D) all of the above 
E) none of the above

Question 11

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 12

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 13

While at a concert, a wind blows directly from the orchestra toward you. The speed of the sound you hear is

Accepted Answer

A) decreased. 
B) increased. 
C) neither. 
A) decreased. 
B) increased. 
C) neither.

Question 14

The reflection of sound is

Accepted Answer

A) reverberation. 
B) an echo. 
C) bouncing waves. 
A) reverberation. 
B) an echo. 
C) bouncing waves.

Question 15

When sound travels faster higher above ground level than it does closer to the ground, sound bends

Accepted Answer

A) upward. 
B) downward. 
C) neither 
A) upward. 
B) downward. 
C) neither

Question 16

When we consider the time taken for a pendulum to swing 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 17

A wave having a frequency of 1000 Hz vibrates at

Accepted Answer

A) less than 1000 cycles per second. 
B) 1000 cycles per second. 
C) more than 1000 cycles per second. 
A) less than 1000 cycles per second. 
B) 1000 cycles per second. 
C) more than 1000 cycles per second.

Question 18

How many vibrations per second are associated with a 101-MHz radio wave?

Accepted Answer

A) less than 101,000,000 
B) 101,000,000 
C) more than 101,000,00 
A) less than 101,000,000 
B) 101,000,000 
C) more than 101,000,00

Question 19

All other things being the same, strings having more mass than other strings will produce

Accepted Answer

A) higher frequency notes. 
B) lower frequency notes. 
C) the same frequency notes. 
A) higher frequency notes. 
B) lower frequency notes. 
C) the same frequency notes.

Question 20

When sound travels faster at ground level than higher in the air, sound tends to bend

Accepted Answer

A) upward. 
B) downward. 
C) neither 
A) upward. 
B) downward. 
C) neither

Exam 10: Waves and Sound

Wave interference occurs for

In a longitudinal wave, the compressions and rarefactions travel in

Sound energy that is not reflected is

While at a concert, a wind blows directly from the orchestra toward you. You hear the average frequencies of sound

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

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

A floating leaf oscillates up and down 2 complete cycles in 1 s as a water wave of wavelength 10 m passes by. What is the wave's speed?

A floating leaf oscillates up and down two complete cycles each 1 s as a water wave passes by. What is the wave's frequency?

The natural frequency of an object depends on its

The phenomenon of beats results from sound

Which of the following is not a transverse wave?

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

While at a concert, a wind blows directly from the orchestra toward you. The speed of the sound you hear is

The reflection of sound is

When sound travels faster higher above ground level than it does closer to the ground, sound bends

When we consider the time taken for a pendulum to swing to and fro we're talking about the pendulum's

A wave having a frequency of 1000 Hz vibrates at

How many vibrations per second are associated with a 101-MHz radio wave?

All other things being the same, strings having more mass than other strings will produce

When sound travels faster at ground level than higher in the air, sound tends to bend

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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