Question 1

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

Accepted Answer

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

Question 2

Sound travels fastest in

Accepted Answer

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

Question 3

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 4

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 5

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 6

What moves from place to place in wave motion is

Accepted Answer

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

Question 7

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

Question 8

High-pitched sound has a high

Accepted Answer

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

Question 9

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 10

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 11

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 12

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 13

"Sympathetic vibrations" refers to

Accepted Answer

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

Question 14

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 15

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 16

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 17

Wave interference occurs in

Accepted Answer

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

Question 18

A compression is a squash and a rarefaction is a

Accepted Answer

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

Question 19

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

Accepted Answer

All waves are vibrations in space and ti...

Question 20

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

Exam 10: Waves and Sound

What moves from place to place in wave motion is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Sound travels fastest in

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

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

The Doppler effect is a characteristic of

Correct AnswerverifiedShow Answer

Wave interference occurs in

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow 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

A sound wave is a

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

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

"Sympathetic vibrations" refers to

Correct AnswerverifiedShow Answer

High-pitched sound has a high

Correct AnswerverifiedShow Answer

The range of human hearing is about

Correct AnswerverifiedShow Answer

The medium in which a wave travels

Correct AnswerverifiedShow Answer

A compression is a squash and a rarefaction is a

Correct AnswerverifiedShow Answer

Correct Answer
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All waves are vibrations in space and ti...
View Answer

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Speed = wave frequen...
View Answer

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