Question 1

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,...

Question 2

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 3

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

Accepted Answer

3.00 * 10<

Question 4

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

Accepted Answer

1.7 * 10<s

Question 5

For a longitudinal mechanical wave, the particle motion is

Accepted Answer

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

Question 6

Electromagnetic waves are

Accepted Answer

A)  longitudinal. 
B)  reverse. 
C)  transverse. 
D)  a combination of these. 
A)  longitudinal. 
B)  reverse. 
C)  transverse. 
D)  a combination of these.

Question 7

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

Question 8

Wave velocity is inversely proportional to

Accepted Answer

A)  period. 
B)  wavelength. 
C)  amplitude. 
D)  all of these. 
A)  period. 
B)  wavelength. 
C)  amplitude. 
D)  all of these.

Question 9

When a system is being driven at a natural frequency, it is said to be driven in ______________.

Accepted Answer

The answer of When a system is being driven at...

Question 10

As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn.

Accepted Answer

The answer of As a truck moves away from a...

Question 11

The major difference between transverse and longitudinal waves is the

Accepted Answer

A)  direction of the wave motion. 
B)  phase difference. 
C)  direction of the particle displacement with respect to the direction of wave motion. 
D)  size of the waves. 
A)  direction of the wave motion. 
B)  phase difference. 
C)  direction of the particle displacement with respect to the direction of wave motion. 
D)  size of the waves.

Question 12

A series of ocean waves, each 24.0 m from crest to crest and moving past an observer at a rate of 6.0 waves per second, has what speed?

Accepted Answer

A)  144 m/s 
B)  4 m/s 
C)  6 m/s 
D)  0.25 m/s 
A)  144 m/s 
B)  4 m/s 
C)  6 m/s 
D)  0.25 m/s

Question 13

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.

Question 14

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 15

If the wave frequency is doubled, the period of the wave is ______________.

Accepted Answer

The answer of If the wave frequency is doubled, the...

Question 16

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 17

A pendulum has how many natural frequencies?

Accepted Answer

The answer of A pendulum has how many natural frequencies?...

Question 18

A particular sound with large intensity is reduced 1000-fold. What is the decibel reduction?

Accepted Answer

The answer of A particular sound with large intensity is...

Question 19

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 20

How many times greater is the speed of infrared light (λ = 800 nm) than the speed of violet light (λ = 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.

Exam 6: Waves and Sound

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

A Doppler red shift indicates

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

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

For a longitudinal mechanical wave, the particle motion is

Electromagnetic waves are

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

Wave velocity is inversely proportional to

When a system is being driven at a natural frequency, it is said to be driven in ______________.

As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn.

The major difference between transverse and longitudinal waves is the

A series of ocean waves, each 24.0 m from crest to crest and moving past an observer at a rate of 6.0 waves per second, has what speed?

A Doppler red shift indicates

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?

If the wave frequency is doubled, the period of the wave is ______________.

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? ​ ​

A pendulum has how many natural frequencies?

A particular sound with large intensity is reduced 1000-fold. What is the decibel reduction?

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

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

Measurement

Motion

Force and Motion

Work and Energy

Temperature and Heat

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear 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 G Eology and P Late Tectonics

Minerals, Rocks, and Volcanoes

Surface Processes

Geologic Time

Filters

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?