Question 1

Light can travel to Earth from a distant star,but sound cannot.Why is this?

Accepted Answer

A)   Light is an electromagnetic wave, and sound requires a medium.
B)   The Sun does not make sound.
C)   Light is a longitudinal wave, and sound is a transverse wave.
D)   The statement is false; both light and sound can travel in empty space.

Question 2

A Doppler red shift indicates

Accepted Answer

A)   a shift toward lower frequencies.
B)   a shift toward longer wavelengths.
C)   that a light source is receding relative to the observer.
D)   all of these.

Question 3

What is the frequency of yellow-green light that has a wavelength of 550 nm?

Accepted Answer

The answer of What is the frequency of yellow-green light...

Question 4

A sound with a frequency of 1000 Hz is in the ______________ region of the sound spectrum.

Accepted Answer

A)   infrasonic
B)   ultrasonic
C)   audible
D)   visible

Question 5

If a wave has a frequency of 15 Hz,it has a period of

Accepted Answer

A)   1/15 s.
B)   3.9 s.
C)   225 s.
D)   15 s.

Question 6

A disturbance in particle motion parallel to the wave velocity is called a

Accepted Answer

A)   transverse wave.
B)   acoustic wave.
C)   standing wave.
D)   longitudinal wave.

Question 7

Sounds with frequencies higher than the human ear can detect are in the ______________ range.

Accepted Answer

The answer of Sounds with frequencies higher than the human...

Question 8

Which of the following radiations has the greatest frequency?

Accepted Answer

A)   Infrared
B)   Visible
C)   Ultraviolet
D)   X-rays

Question 9

The region of the electromagnetic spectrum with frequencies just greater than those in the ultraviolet region is the ______________ region.

Accepted Answer

A)   x-rays
B)   radio waves
C)   microwaves
D)   infrared
E)   gamma rays

Question 10

A Doppler red shift indicates

Accepted Answer

A)   a shift toward lower frequencies.
B)   a shift toward shorter wavelengths.
C)   that a light source is approaching relative to the observer.
D)   none of these.

Question 11

Watts per square meter is a unit for measuring the ______________ of a sound wave.

Accepted Answer

The answer of Watts per square meter is a unit...

Question 12

The audible range of sound is from 20 Hz to ______________ kHz.

Accepted Answer

The answer of The audible range of sound is from...

Question 13

If a piece of ribbon were tied to a stretched string carrying a transverse wave,how would the ribbon be observed to oscillate?

Accepted Answer

A)   Perpendicular to the wave motion
B)   Parallel to the wave motion
C)   Neither (
A)   nor (
B)  
D)   Both (
A)   and (
B)

Question 14

Sound is a(n)______________ wave.

Accepted Answer

The answer of Sound is a(n)______________ wave....

Question 15

The region of the electromagnetic spectrum with wavelengths just greater than those in the infrared region is the ______________ region.

Accepted Answer

A)   microwaves
B)   x-rays
C)   gamma rays
D)   radio waves
E)   ultraviolet

Question 16

For a wave with a constant speed,the greater the frequency of the wave,the ______________ its wavelength.

Accepted Answer

The answer of For a wave with a constant speed,the...

Question 17

A sound with a frequency of 11 Hz is in the ______________ region of the sound spectrum.

Accepted Answer

A)   infrasonic
B)   ultrasonic
C)   audible
D)   visible

Question 18

A wave in which the particle displacement is perpendicular to the wave motion is called a(n)______________ wave.

Accepted Answer

The answer of A wave in which the particle displacement...

Question 19

Which of the following sound frequencies lie(s) outside the audible range?

Accepted Answer

A)   14 Hz
B)   11 kHz
C)   2700 Hz
D)   All of these

Question 20

For a standing wave in a rope or string,the points that remain stationary are called ______________.

Accepted Answer

The answer of For a standing wave in a rope...

Exam 6: Waves and Sound

A wave in which the particle displacement is perpendicular to the wave motion is called a(n)______________ wave.

Correct AnswerverifiedShow Answer

A Doppler red shift indicates

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Watts per square meter is a unit for measuring the ______________ of a sound wave.

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Sounds with frequencies higher than the human ear can detect are in the ______________ range.

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Light can travel to Earth from a distant star,but sound cannot.Why is this?

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The audible range of sound is from 20 Hz to ______________ kHz.

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Which of the following radiations has the greatest frequency?

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Sound is a(n)______________ wave.

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If a wave has a frequency of 15 Hz,it has a period of

Correct AnswerverifiedShow Answer

What is the frequency of yellow-green light that has a wavelength of 550 nm?

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For a standing wave in a rope or string,the points that remain stationary are called ______________.

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A disturbance in particle motion parallel to the wave velocity is called a

Correct AnswerverifiedShow Answer

Which of the following sound frequencies lie(s) outside the audible range?

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The region of the electromagnetic spectrum with wavelengths just greater than those in the infrared region is the ______________ region.

Correct AnswerverifiedShow Answer

If a piece of ribbon were tied to a stretched string carrying a transverse wave,how would the ribbon be observed to oscillate?

Correct AnswerverifiedShow Answer

A Doppler red shift indicates

Correct AnswerverifiedShow Answer

For a wave with a constant speed,the greater the frequency of the wave,the ______________ its wavelength.

Correct AnswerverifiedShow Answer

A sound with a frequency of 1000 Hz is in the ______________ region of the sound spectrum.

Correct AnswerverifiedShow Answer

A sound with a frequency of 11 Hz is in the ______________ region of the sound spectrum.

Correct AnswerverifiedShow Answer

The region of the electromagnetic spectrum with frequencies just greater than those in the ultraviolet region is the ______________ region.

Correct AnswerverifiedShow Answer

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