Question 1

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. 
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. D

Question 2

For a transverse mechanical wave, the particle motion is

Accepted Answer

A)  both parallel and perpendicular to the direction of the wave velocity. 
B)  parallel to the direction of the wave velocity. 
C)  perpendicular to the direction of the wave velocity. 
D)  in all directions. 
A)  both parallel and perpendicular to the direction of the wave velocity. 
B)  parallel to the direction of the wave velocity. 
C)  perpendicular to the direction of the wave velocity. 
D)  in all directions. C

Question 3

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

Question 4

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

Accepted Answer

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

Question 5

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

Question 6

During a thunderstorm, an observer notes that 10 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?

Accepted Answer

The answer of During a thunderstorm, an observer notes that...

Question 7

If a wave has a period of 0.100 sec, it has a frequency of

Accepted Answer

A)  1/10 Hz. 
B)  3.2 Hz. 
C)  100 Hz. 
D)  10 Hz. 
A)  1/10 Hz. 
B)  3.2 Hz. 
C)  100 Hz. 
D)  10 Hz.

Question 8

During a thunderstorm, an observer notes that 20 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?

Accepted Answer

A)  20 mi 
B)  100 mi 
C)  4 mi 
D)  400 mi 
A)  20 mi 
B)  100 mi 
C)  4 mi 
D)  400 mi

Question 9

When a jet plane exceeds the speed of sound, a(n) ______________ forms, resulting in a sonic boom.

Accepted Answer

The answer of When a jet plane exceeds the speed...

Question 10

Which of the following radiations has the greatest frequency?

Accepted Answer

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

Question 11

Which of the following radiations has the smallest frequency?

Accepted Answer

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

Question 12

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

Accepted Answer

0 @#LAT-DLM& 10<sup>

Question 13

A sound wave in air travels at a speed of 340 m/s. If the wavelength is 0.100 m, in what range of the sound spectrum is the wave?

Accepted Answer

The answer of A sound wave in air travels at...

Question 14

The Doppler effect is observed only when

Accepted Answer

A)  the source of a wave moves toward a stationary observer. 
B)  there is relative motion between the source of a wave and an observer. 
C)  an observer moves toward the stationary source of a wave. 
D)  both the source of a wave and an observer are moving toward each other. 
A)  the source of a wave moves toward a stationary observer. 
B)  there is relative motion between the source of a wave and an observer. 
C)  an observer moves toward the stationary source of a wave. 
D)  both the source of a wave and an observer are moving toward each other.

Question 15

The SI unit of frequency is ______________.

Accepted Answer

The answer of The SI unit of frequency is ______________....

Question 16

How many times greater is the speed of infrared light ($\lambda$= 800 nm) than the speed of violet light ($\lambda$= 400 nm) in a vacuum?

Accepted Answer

A)  2 
B)  1/2 
C)  400 
D)  1; that is, both have the same speed. 
A)  2 
B)  1/2 
C)  400 
D)  1; that is, both have the same speed.

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

Question 18

What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 0.20 m?

Accepted Answer

7 @#LAT-DLM& 10<sup>

Question 19

If a sound level increases by 20 dB, the intensity increases by a factor of ______________.

Accepted Answer

A)  one thousand 
B)  one hundred 
C)  ten 
D)  ten thousand 
A)  one thousand 
B)  one hundred 
C)  ten 
D)  ten thousand

Question 20

Light in a vacuum has a speed of ______________ m/s.

Accepted Answer

The answer of Light in a vacuum has a speed...

A Doppler red shift indicates

For a transverse mechanical wave, the particle motion is

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

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

A Doppler red shift indicates

During a thunderstorm, an observer notes that 10 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?

If a wave has a period of 0.100 sec, it has a frequency of

During a thunderstorm, an observer notes that 20 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?

When a jet plane exceeds the speed of sound, a(n) ______________ forms, resulting in a sonic boom.

Which of the following radiations has the greatest frequency?

Which of the following radiations has the smallest frequency?

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

A sound wave in air travels at a speed of 340 m/s. If the wavelength is 0.100 m, in what range of the sound spectrum is the wave?

The Doppler effect is observed only when

The SI unit of frequency is ______________.

How many times greater is the speed of infrared light ( $\lambda$ = 800 nm) than the speed of violet light ( $\lambda$ = 400 nm) in a vacuum?

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

What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 0.20 m?

If a sound level increases by 20 dB, the intensity increases by a factor of ______________.

Light in a vacuum has a speed of ______________ m/s.

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

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The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

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Exam 6: Nuclear Physics

A Doppler red shift indicates

For a transverse mechanical wave, the particle motion is

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

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

A Doppler red shift indicates

During a thunderstorm, an observer notes that 10 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?

If a wave has a period of 0.100 sec, it has a frequency of

During a thunderstorm, an observer notes that 20 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?

When a jet plane exceeds the speed of sound, a(n) ______________ forms, resulting in a sonic boom.

Which of the following radiations has the greatest frequency?

Which of the following radiations has the smallest frequency?

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

A sound wave in air travels at a speed of 340 m/s. If the wavelength is 0.100 m, in what range of the sound spectrum is the wave?

The Doppler effect is observed only when

The SI unit of frequency is ______________.

How many times greater is the speed of infrared light ( λ\lambdaλ = 800 nm) than the speed of violet light ( λ\lambdaλ = 400 nm) in a vacuum?

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

What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 0.20 m?

If a sound level increases by 20 dB, the intensity increases by a factor of ______________.

Light in a vacuum has a speed of ______________ m/s.

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

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

How many times greater is the speed of infrared light ( $\lambda$ = 800 nm) than the speed of violet light ( $\lambda$ = 400 nm) in a vacuum?