Question 1

The intensity of a 70-dB whistle is quintupled. What is the new decibel level?

Accepted Answer

A)   70 dB
B)   55 dB
C)   82 dB
D)   350 dBE) None of the above
F) All of the above

Question 2

A series of ocean waves, each 6.0 m from crest to crest and moving past an observer at a rate of 2.0 waves per second, has what speed?

Accepted Answer

The answer of A series of ocean waves, each 6.0...

Question 3

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.E) None of the above
F) A) and D)

Question 4

Of the two main types of waves, light is a(n) ______________ wave.

Accepted Answer

The answer of Of the two main types of waves,...

Question 5

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)   visibleE) C) and D)
F) A) and B)

Question 6

A certain radio wave has a frequency of 1.03 MHz. What is the wavelength?

Accepted Answer

91 <img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30"> 10<sup...

Question 7

The relationship of wave speed, wavelength, and frequency is given by ______________.

Accepted Answer

The answer of The relationship of wave speed, wavelength, and...

Question 8

A sound level of 93 dB is how many times as intense as one of 73 dB?

Accepted Answer

The answer of A sound level of 93 dB is...

Question 9

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)   manyE) B) and C)
F) A) and D)

Question 10

A Doppler red shift indicates

Accepted Answer

A)   a shift toward higher frequencies.
B)   a shift toward longer wavelengths.
C)   that a light source is approaching relative to the observer.
D)   none of these.E) None of the above
F) B) and C)

Question 11

Which of the following electromagnetic radiations has the greatest frequency?

Accepted Answer

A)   Ultraviolet
B)   Infrared
C)   Radio
D)   VisibleE) B) and D)
F) A) and D)

Question 12

A radar pulse returns 3.0 $\times$ 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

The answer of A radar pulse returns 3.0 $\times$ 10-4...

Question 13

How many times greater is the speed of red light ($\lambda$= 700 nm) than the speed of violet light ($\lambda$= 400 nm) in a vacuum?

Accepted Answer

Both have ...

Question 14

The intensity of a 70-dB whistle is doubled. What is the new decibel level?

Accepted Answer

The answer of The intensity of a 70-dB whistle is...

Question 15

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.E) None of the above
F) C) and D)

Question 16

The loudness of a sound wave is determined by its ______________.

Accepted Answer

The answer of The loudness of a sound wave is...

Question 17

Standing waves can be set up in a string when two waves that are

Accepted Answer

A)   of the same frequency and amplitude, but are opposite in direction of travel, meet each other.
B)   of the same frequency, amplitude, and direction of travel are also 180° out of phase.
C)   of the same frequency, amplitude, and direction of travel meet each other.
D)   of the same frequency, amplitude, and velocity meet each other.E) A) and D)
F) B) and D)

Question 18

Sound is a(n) ______________ wave.

Accepted Answer

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

Question 19

The intensity of a 80-dB whistle is doubled. What is the new decibel level?

Accepted Answer

A)   80 dB
B)   77 dB
C)   83 dB
D)   160 dBE) A) and C)
F) None of the above

Question 20

If a sound level increases by 30 dB, the intensity increases by a factor of ______________.

Accepted Answer

The answer of If a sound level increases by 30...

Exam 6: Nuclear Physics

A radar pulse returns 3.0 ×\times× 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

The intensity of a 80-dB whistle is doubled. What is the new decibel level?

Correct AnswerverifiedShow Answer

How many times greater is the speed of red light ( λ\lambdaλ = 700 nm) than the speed of violet light ( λ\lambdaλ = 400 nm) in a vacuum?

Correct AnswerverifiedBoth have ...View AnswerShow Answer

Which of the following electromagnetic radiations has the greatest frequency?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A Doppler red shift indicates

Correct AnswerverifiedShow Answer

A series of ocean waves, each 6.0 m from crest to crest and moving past an observer at a rate of 2.0 waves per second, has what speed?

Correct AnswerverifiedShow Answer

Resonance occurs when

Correct AnswerverifiedShow Answer

Standing waves can be set up in a string when two waves that are

Correct AnswerverifiedShow Answer

The intensity of a 70-dB whistle is doubled. What is the new decibel level?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The loudness of a sound wave is determined by its ______________.

Correct AnswerverifiedShow Answer

The relationship of wave speed, wavelength, and frequency is given by ______________.

Correct AnswerverifiedShow Answer

If a sound level increases by 30 dB, the intensity increases by a factor of ______________.

Correct AnswerverifiedShow Answer

A certain radio wave has a frequency of 1.03 MHz. What is the wavelength?

Correct Answerverified91 10View AnswerShow Answer

A sound level of 93 dB is how many times as intense as one of 73 dB?

Correct AnswerverifiedShow Answer

Sound is a(n) ______________ wave.

Correct AnswerverifiedShow Answer

The intensity of a 70-dB whistle is quintupled. What is the new decibel level?

Correct AnswerverifiedShow Answer

Of the two main types of waves, light is a(n) ______________ wave.

Correct AnswerverifiedShow Answer

A radar pulse returns 3.0 $\times$ 10^-4s after it was sent out and reflected by an object. What is the separation distance of the radar source and the object?

Correct Answer
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How many times greater is the speed of red light ( $\lambda$ = 700 nm) than the speed of violet light ( $\lambda$ = 400 nm) in a vacuum?

Correct Answer
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Both have ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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91 10
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