Question 1

Sound is a(n) ______________ wave.

Accepted Answer

longitudinal

Question 2

Wave amplitude is related to

Accepted Answer

A)  wave velocity. 
B)  frequency. 
C)  energy. 
D)  wavelength. 
A)  wave velocity. 
B)  frequency. 
C)  energy. 
D)  wavelength. C

Question 3

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

Accepted Answer

2.91 * 10² m

Question 4

The radiation given off by the nucleus of an atom is called

Accepted Answer

A)  a microwave. 
B)  a gamma ray. 
C)  an X-ray. 
D)  any of these. 
A)  a microwave. 
B)  a gamma ray. 
C)  an X-ray. 
D)  any of these.

Question 5

Sound is a(n)

Accepted Answer

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

Question 6

An increase of 40 dB increases the sound intensity by a factor of

Accepted Answer

A)  1000. 
B)  40000. 
C)  10000. 
D)  4000. 
A)  1000. 
B)  40000. 
C)  10000. 
D)  4000.

Question 7

Wave frequency is inversely proportional to

Accepted Answer

A)  amplitude. 
B)  period. 
C)  wave velocity. 
D)  all of these. 
A)  amplitude. 
B)  period. 
C)  wave velocity. 
D)  all of these.

Question 8

A series of ocean waves are moving past a surfer at a frequency of 40 waves per hour. Approximately how many waves would the surfer expect during 48 minutes?

Accepted Answer

A)  1920 waves 
B)  32 waves 
C)  40 waves 
D)  50 waves 
A)  1920 waves 
B)  32 waves 
C)  40 waves 
D)  50 waves

Question 9

If a wave has a frequency of 6 Hz, it has a period of

Accepted Answer

A)  1/6 s. 
B)  6.5 s. 
C)  6 s. 
D)  3 s. 
A)  1/6 s. 
B)  6.5 s. 
C)  6 s. 
D)  3 s.

Question 10

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.

Question 11

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 12

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 13

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

Accepted Answer

A)  1.75 , the first color of light is faster 
B)  0.57 , the second color of light is faster 
C)  3.00 x 108 , the first color of light is faster 
D)  1.00 , both colors of light have the same speed 
E)  3.00 x 108 , the second color of light is faster 
A)  1.75 , the first color of light is faster 
B)  0.57 , the second color of light is faster 
C)  3.00 x 108 , the first color of light is faster 
D)  1.00 , both colors of light have the same speed 
E)  3.00 x 108 , the second color of light is faster

Question 14

What is the wavelength, in meters, of radio waves produced by a radio station with a frequency of 1400 kHz?
(c = 3.00 × 108 m/s)

Accepted Answer

2.1*10<sup

Question 15

A sound level of 19 dB is how many times as intense as one of 10 dB?

Accepted Answer

A)  8 
B)  9 
C)  3 
D)  18 
A)  8 
B)  9 
C)  3 
D)  18

Question 16

When an oscillator is driven in resonance,

Accepted Answer

A)  there are no standing waves. 
B)  any driving frequency may be used. 
C)  all natural frequencies are present. 
D)  there is maximum energy transfer. 
A)  there are no standing waves. 
B)  any driving frequency may be used. 
C)  all natural frequencies are present. 
D)  there is maximum energy transfer.

Question 17

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

Question 18

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

Accepted Answer

A)  13 Hz 
B)  5 kHz 
C)  1 MHz 
D)  All of these 
A)  13 Hz 
B)  5 kHz 
C)  1 MHz 
D)  All of these

Question 19

A sound level of 96 dB is how many times as intense as one of 90 dB?

Accepted Answer

The answer of A sound level of 96 dB is...

Question 20

A sound with a frequency of 25 kHz 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

Exam 6: Waves and Sound

Sound is a(n) ______________ wave.

Wave amplitude is related to

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

The radiation given off by the nucleus of an atom is called

Sound is a(n)

An increase of 40 dB increases the sound intensity by a factor of

Wave frequency is inversely proportional to

A series of ocean waves are moving past a surfer at a frequency of 40 waves per hour. Approximately how many waves would the surfer expect during 48 minutes?

If a wave has a frequency of 6 Hz, it has a period of

For a transverse mechanical wave, the particle motion is

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

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

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

What is the wavelength, in meters, of radio waves produced by a radio station with a frequency of 1400 kHz? (c = 3.00 × 108 m/s)

A sound level of 19 dB is how many times as intense as one of 10 dB?

When an oscillator is driven in resonance,

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

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

A sound level of 96 dB is how many times as intense as one of 90 dB?

A sound with a frequency of 25 kHz is in the ______________ region of the sound spectrum.

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What is the wavelength, in meters, of radio waves produced by a radio station with a frequency of 1400 kHz? (c = 3.00 × 10⁸ m/s)