Hearing Aid Academy Final Quiz-1 And
All Complete Solutions .
Indicate the medium or mediums through which sound CANNOT travel:
gas
vacuum
gas or solid
solid or liquid - Answer vacuum
How do sound waves travel:
in expanding spheres in all directions
along the surface only
in a vacuum
all of the above - Answer in expanding spheres in all directions
The branch of physics that deals with sound is:
audiology
otology
acoustics
optometry - Answer acoustics
The speed of sound waves in air at sea level is:
340 meters/second
1200 feet/second
,900 miles/hour
1100 miles/hour - Answer 340 meters/second
The number of times a vibrating body completes a pattern of compressions and rarefactions per second
is the:
frequency of a sound
amplitude of a sound
cycle of a sound
wavelength of a sound - Answer frequency of a sound
What do we call a sound that consists of only one frequency:
complex tone
pure tone
specific frequency sound
all of the above - Answer pure tone
What is the interval between two frequencies called when the higher frequency is double the lower
frequency:
harmonic
overtone
octave
fundamental - Answer octave
The lowest frequency that makes up most complex sounds is:
usually the loudest
,said to predominate
called the fundamental frequency
all of the above - Answer all of the above
A graphic representation of the relative strengths of the harmonics of a complex tone is called a:
harmonic analysis
line spectrum
quality graph
pitch analysis
all of the above - Answer line spectrum
The decibel:
is an absolute measure of sound intensity
should never be qualified as a reference to a standard
is used only as a measure of hearing loss
none of the above - Answer none of the above
The tympanic membrane receives acoustic energy in the form of sound waves and changes it to:
mechanical energy
hydraulic energy
electro-chemical energy
kinetic energy - Answer mechanical energy
The sound of an approaching train can be heard through the rail before it can be heard through the air
because:
, the train is in contact with the rail but not through the air
sound travels faster through the rail than through the air
sound will not travel through a steel rail
the frequency of sound is higher through the rail - Answer sound travels faster through the rail than
through the air
During rarefaction the molecules are:
closer together at a state of increased pressure
further apart at a state of increased pressure
closer together at a state of decreased pressure
further apart at a state of decreased pressure - Answer further apart at a state of decreased pressure
A formant is:
a graph showing the amplitude and frequency of a complex sound
the fundamental frequency plus all harmonics
a frequency region within which certain harmonics have relatively large energy
the relative strength of all frequencies in a complex sound - Answer a frequency region within which
certain harmonics have relatively large energy
Where are the low frequencies analyzed in the cochlea:
apex
near the middle
near the oval window
base - Answer apex
The organ of Corti is located in the:
All Complete Solutions .
Indicate the medium or mediums through which sound CANNOT travel:
gas
vacuum
gas or solid
solid or liquid - Answer vacuum
How do sound waves travel:
in expanding spheres in all directions
along the surface only
in a vacuum
all of the above - Answer in expanding spheres in all directions
The branch of physics that deals with sound is:
audiology
otology
acoustics
optometry - Answer acoustics
The speed of sound waves in air at sea level is:
340 meters/second
1200 feet/second
,900 miles/hour
1100 miles/hour - Answer 340 meters/second
The number of times a vibrating body completes a pattern of compressions and rarefactions per second
is the:
frequency of a sound
amplitude of a sound
cycle of a sound
wavelength of a sound - Answer frequency of a sound
What do we call a sound that consists of only one frequency:
complex tone
pure tone
specific frequency sound
all of the above - Answer pure tone
What is the interval between two frequencies called when the higher frequency is double the lower
frequency:
harmonic
overtone
octave
fundamental - Answer octave
The lowest frequency that makes up most complex sounds is:
usually the loudest
,said to predominate
called the fundamental frequency
all of the above - Answer all of the above
A graphic representation of the relative strengths of the harmonics of a complex tone is called a:
harmonic analysis
line spectrum
quality graph
pitch analysis
all of the above - Answer line spectrum
The decibel:
is an absolute measure of sound intensity
should never be qualified as a reference to a standard
is used only as a measure of hearing loss
none of the above - Answer none of the above
The tympanic membrane receives acoustic energy in the form of sound waves and changes it to:
mechanical energy
hydraulic energy
electro-chemical energy
kinetic energy - Answer mechanical energy
The sound of an approaching train can be heard through the rail before it can be heard through the air
because:
, the train is in contact with the rail but not through the air
sound travels faster through the rail than through the air
sound will not travel through a steel rail
the frequency of sound is higher through the rail - Answer sound travels faster through the rail than
through the air
During rarefaction the molecules are:
closer together at a state of increased pressure
further apart at a state of increased pressure
closer together at a state of decreased pressure
further apart at a state of decreased pressure - Answer further apart at a state of decreased pressure
A formant is:
a graph showing the amplitude and frequency of a complex sound
the fundamental frequency plus all harmonics
a frequency region within which certain harmonics have relatively large energy
the relative strength of all frequencies in a complex sound - Answer a frequency region within which
certain harmonics have relatively large energy
Where are the low frequencies analyzed in the cochlea:
apex
near the middle
near the oval window
base - Answer apex
The organ of Corti is located in the:
