Question 1

The frequency and the wavelength of a wave are ______________ proportional.

Accepted Answer

The answer of The frequency and the wavelength of a...

Question 2

Resonance occurs when

Accepted Answer

A)   two different objects vibrate with different frequencies.
B)   two different objects produce beats.
C)   an object having a certain natural frequency is set in vibration by a second object vibrating at that frequency.
D)   an object produces a sound.

Question 3

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 4

Wave frequency could be given in

Accepted Answer

A)   1/s.
B)   s-1
C)   Hz.
D)   any of these.

Question 5

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 6

A wave with a frequency of 5 Hz will have a period of ______________ s.

Accepted Answer

The answer of A wave with a frequency of 5...

Question 7

A Doppler red shift indicates

Accepted Answer

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

Question 8

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

Accepted Answer

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

Question 9

A certain radio wave has a wavelength of 6.0 × 10-2m. What is its frequency in hertz?

Accepted Answer

5.0 * 10<s...

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

A sound with a frequency of 15 Hz is in the ______________ region of the sound spectrum.

Accepted Answer

The answer of A sound with a frequency of 15...

Question 12

The region of the electromagnetic spectrum with wavelengths just less 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 13

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 14

Which of the following radiations has the longest wavelength?

Accepted Answer

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

Question 15

Which of the following radiations has the greatest frequency?

Accepted Answer

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

Question 16

For a wave with a constant speed, the smaller the period, the ______________ its wavelength.

Accepted Answer

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

Question 17

A radar pulse returns 9.0 × 10-4 s after it was sent out and reflected by an object. What is the separation distance of the radar source and the object?

Accepted Answer

A)   2.7 × 105 m
B)   1.4 × 105 m
C)   7.4 × 10-4 m
D)   3.7 × 10-4 m

Question 18

A stretched string can have ______________ natural frequency(ies) .

Accepted Answer

A)   one
B)   10 times its length in
C)   5 times its length in
D)   many

Question 19

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 20

In general, the speed of sound increases as the density of a medium ______________.

Accepted Answer

The answer of In general, the speed of sound increases...

Exam 6: Waves and Sound

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

Correct AnswerverifiedShow Answer

A sound with a frequency of 15 Hz is in the ______________ region of the sound spectrum.

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A stretched string can have ______________ natural frequency(ies) .

Correct AnswerverifiedShow Answer

Resonance occurs when

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Which of the following radiations has the longest wavelength?

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In general, the speed of sound increases as the density of a medium ______________.

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A Doppler red shift indicates

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

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

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The frequency and the wavelength of a wave are ______________ proportional.

Correct AnswerverifiedShow Answer

For a wave with a constant speed, the smaller the period, the ______________ its wavelength.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A certain radio wave has a wavelength of 6.0 × 10-2m. What is its frequency in hertz?

Correct Answerverified5.0 * 10View AnswerShow Answer

A Doppler red shift indicates

Correct AnswerverifiedShow Answer

Which of the following radiations has the greatest frequency?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A radar pulse returns 9.0 × 10-4 s after it was sent out and reflected by an object. What is the separation distance of the radar source and the object?

Correct AnswerverifiedShow Answer

Wave frequency could be given in

Correct AnswerverifiedShow Answer

A wave with a frequency of 5 Hz will have a period of ______________ s.

Correct AnswerverifiedShow Answer

The region of the electromagnetic spectrum with wavelengths just less than those in the ultraviolet region is the ______________ region.

Correct AnswerverifiedShow Answer

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A certain radio wave has a wavelength of 6.0 × 10^-2m. What is its frequency in hertz?

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5.0 * 10
View Answer

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A radar pulse returns 9.0 × 10^-4 s after it was sent out and reflected by an object. What is the separation distance of the radar source and the object?

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