Question 1

When sound travels faster higher in the air than it does closer to the ground,sound bends

Accepted Answer

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

Question 2

When Ken Ford wears noise-canceling earphones in his airplane,he is applying

Accepted Answer

A)  anti-noise technology.
B)  beats.
C)  resonance of sound.
D)  all of these
E)  none of the above

Question 3

The medium in which a wave travels

Accepted Answer

A)  moves along with the wave.
B)  transmits the wave.
C)  inhibits the wave.
D)  reflects the wave.

Question 4

"Sympathetic vibrations" refers to

Accepted Answer

A)  beats.
B)  interference.
C)  pitch.
D)  resonance.

Question 5

The Doppler effect is a characteristic of

Accepted Answer

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

Question 6

High-pitched sound has a high

Accepted Answer

A)  speed.
B)  rate of vibration.
C)  both of these
D)  neither of these

Question 7

A sound wave is a

Accepted Answer

A)  longitudinal wave.
B)  transverse wave.
C)  standing wave.
D)  shock wave.
E)  none of the above

Question 8

When the handle of a tuning fork is held solidly against a table,the time the fork keeps vibrating becomes

Accepted Answer

A)  longer.
B)  shorter.
C)  remains the same

Question 9

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

Question 10

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

Question 11

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)  need more information

Question 12

What moves from place to place in wave motion is

Accepted Answer

A)  energy.
B)  momentum.
C)  pressure.
D)  matter.

Question 13

A compression is a squash and a rarefaction is a

Accepted Answer

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

Question 14

If you double the frequency of a vibrating object,its period

Accepted Answer

A)  doubles.
B)  is halved.
C)  is one-quarter.

Question 15

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

Accepted Answer

All waves are vibrations in space and ti...

Question 16

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

Accepted Answer

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

Question 17

Sound travels fastest in

Accepted Answer

A)  water vapor.
B)  water.
C)  ice.
D)  same in all

Question 18

Show the relationship between wave speed and wave frequency.If the speed of a longitudinal wave is 340 m/s and the frequency is 1000 Hz,what is the wavelength of the wave?

Accepted Answer

Speed = wave frequen...

Question 19

Wave interference occurs in

Accepted Answer

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

Question 20

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

Exam 10: Waves and Sound

A sound wave is a

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A compression is a squash and a rarefaction is a

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

Correct AnswerverifiedShow Answer

"Sympathetic vibrations" refers to

Correct AnswerverifiedShow Answer

Show the relationship between wave speed and wave frequency.If the speed of a longitudinal wave is 340 m/s and the frequency is 1000 Hz,what is the wavelength of the wave?

Correct AnswerverifiedSpeed = wave frequen...View AnswerShow Answer

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

Correct AnswerverifiedAll waves are vibrations in space and ti...View AnswerShow Answer

The range of human hearing is about

Correct AnswerverifiedShow Answer

When the handle of a tuning fork is held solidly against a table,the time the fork keeps vibrating becomes

Correct AnswerverifiedShow Answer

If you double the frequency of a vibrating object,its period

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Wave interference occurs in

Correct AnswerverifiedShow Answer

The Doppler effect is a characteristic of

Correct AnswerverifiedShow Answer

When sound travels faster higher in the air than it does closer to the ground,sound bends

Correct AnswerverifiedShow Answer

Sound travels fastest in

Correct AnswerverifiedShow Answer

High-pitched sound has a high

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The medium in which a wave travels

Correct AnswerverifiedShow Answer

What moves from place to place in wave motion is

Correct AnswerverifiedShow Answer

When Ken Ford wears noise-canceling earphones in his airplane,he is applying

Correct AnswerverifiedShow Answer

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Speed = wave frequen...
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All waves are vibrations in space and ti...
View Answer

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