Question 1

The name for a persistent perception of a ringing or buzzing in the ear is

Accepted Answer

A)  tinnitus.
B)  dynamic range.
C)  stereopsis. A

Question 2

When a cello and a trombone play the same musical note what physical property of their sound is alike? What physical property of their sound is different?

Accepted Answer

When two instruments play the same note,this means that they are both producing the same fundamental frequency.In addition,this frequency will be accompanied on each instrument by a series of harmonic tones,each a multiple of the fundamental frequency.The differing tim- bres produced by each instrument result from the different relative amplitude of each harmonic frequency.The pleasing sound of string instruments reflects the greater contribution (higher amplitude)of their higher harmonic components.

Question 3

A(n)tone results from air pressure changes over time that fit a mathematical formula called a sine wave.

Accepted Answer

A)  musical
B)  pure
C)  impure B

Question 4

The three perceptual dimensions of sound are

Accepted Answer

A)  amplitude,pitch,and timbre.
B)  loudness,frequency,and sound quality.
C)  loudness,pitch,and timbre.

Question 5

The decibel level for the pain threshold is about dB SPL.

Accepted Answer

A)  120
B)  60
C)  80

Question 6

The motile response occurs due to the hair cells and serves to the movements of the basilar membrane.

Accepted Answer

A)  inner;magnify
B)  outer;magnify
C)  inner;reduce

Question 7

A high-fidelity loudspeaker creates sound when a diaphragm in the shape of a flattened cone vibrates back and forth.The forward movement creates compression,and the backward move- ment creates refraction;together these movements create a complete sound pressure cycle.If the cone takes 10 ms to complete one cycle,what is the frequency of the sound being produced?

Accepted Answer

The answer of A high-fidelity loudspeaker creates sound when a...

Question 8

The audibility curve shows that the auditory threshold is greatest for

Accepted Answer

A)  frequencies between about 200 to 600 Hz.
B)  frequencies above 10,000 Hz.
C)  frequencies between about 500 to 5,000 Hz.

Question 9

The is filled with perilymph,while the is filled with endolymph.

Accepted Answer

A)  tympanic canal;vestibular canal
B)  tympanic canal;cochlear duct
C)  cochlear duct;vestibular canal

Question 10

For frequencies between 4,000 Hz and 8,000Hz,audiograms indicate that

Accepted Answer

A)  30-year-old men hear better than 30-year-old women.
B)  40-year-old women hear better than 40-year-old men.
C)  60-year-old women hear better than 60-year-old men.

Question 11

The basilar membrane is at its apex than at its base.

Accepted Answer

A)  thicker and wider
B)  thinner,wider,and more flexible
C)  wider and less flexible

Question 12

All other things being equal,a sound pressure wave with a large difference between maximal and minimal sound pressures would sound a sound pressure wave with a small differ- ence between maximal and minimal sound pressures.

Accepted Answer

A)  exactly the same as
B)  louder than
C)  quieter than

Question 13

The frequency of a tone is related to the perceptual dimension of

Accepted Answer

A)  hertz.
B)  loudness.
C)  pitch.

Question 14

The pushes on the oval window.

Accepted Answer

A)  hammer
B)  incus
C)  stapes

Question 15

The is fluid-filled.

Accepted Answer

A)  outer ear
B)  middle ear
C)  inner ear

Question 16

The inner hair cells

Accepted Answer

A)  lack stereocilia.
B)  amplify and sharpen the responses of the outer hair cells.
C)  are responsible for auditory transduction.

Question 17

The outer hair cells

Accepted Answer

A)  lack stereocilia unlike the inner hair cells.
B)  amplify and sharpen the responses of the inner hair cells.
C)  are responsible for auditory transduction.

Question 18

The ossicles

Accepted Answer

A)  transmit vibrations to the tympanic membrane from the oval window.
B)  transmit and amplify vibrations from the tympanic membrane to the oval window.
C)  transmit and amplify vibrations from the oval window to the round window.

Question 19

How does the motion of the basilar membrane provide the basis for the place code for frequency representation?

Accepted Answer

The answer of How does the motion of the basilar...

Question 20

Human speech falls in the range of

Accepted Answer

A)  frequencies between about 2,000 to 60,000 Hz.
B)  frequencies above 12,000 Hz.
C)  frequencies between about 500 to 5,000 Hz.

Exam 9: Sound and the Ears