PHYSICS 131 EXAM 2 QUESTIONS AND ANSWERS
The loudness level is an objective measure of how loud a tone sounds and it is
measured in units of db - Answers - false
The cochlea is connected to the outer ear by the - Answers - ossicles
The sensitivity of the basilar membrane for different frequencies at different locations
comes about because the basilar membrane - Answers - widens and gets slacker away
from the oval window
A pure tone of ___ frequency can easily mask a pure tone of ______ frequency, but not
vice versa - Answers - low, higher
The pitch of a pure tone depends mainly on the frequency, but also somewhat on the
sound pressure level and duration - Answers - true
The curves of equal loudness are going "up" at the low frequency end as well as at the
high frequency end. This is because.. - Answers - the ear is not very sensitive to low
and high frequencies
At what SIL must a 100 Hz pure tone be played so it will be perceived at a loudness
level of 60 phon - Answers - 68 db
Which of the following is not correct
Log 128 = 7log(2)
Log 0.2 = log (2) - 1
Log (1000) = 3
Log (25) = log(5) + log(5)
Log(16) = log(8) + log(8) - Answers - log (16) = log(8) + log(8)
Loudness and loudness level are subjective measures of how loud a tone sounds -
Answers - true
When we say the ear is nonlinear, we mean that the ear ... - Answers - responds
differently to different frequencies
A sound that has a pressure corresponding to the threshold of hearing will have a sound
pressure level of - Answers - 0 db
Two or more tones within a critical band excite many of the same hair cells on the
basilar membrane and thus are difficult or impossible to distinguish as separate tones -
Answers - true
The loudness level is an objective measure of how loud a tone sounds and it is
measured in units of db - Answers - false
The cochlea is connected to the outer ear by the - Answers - ossicles
The sensitivity of the basilar membrane for different frequencies at different locations
comes about because the basilar membrane - Answers - widens and gets slacker away
from the oval window
A pure tone of ___ frequency can easily mask a pure tone of ______ frequency, but not
vice versa - Answers - low, higher
The pitch of a pure tone depends mainly on the frequency, but also somewhat on the
sound pressure level and duration - Answers - true
The curves of equal loudness are going "up" at the low frequency end as well as at the
high frequency end. This is because.. - Answers - the ear is not very sensitive to low
and high frequencies
At what SIL must a 100 Hz pure tone be played so it will be perceived at a loudness
level of 60 phon - Answers - 68 db
Which of the following is not correct
Log 128 = 7log(2)
Log 0.2 = log (2) - 1
Log (1000) = 3
Log (25) = log(5) + log(5)
Log(16) = log(8) + log(8) - Answers - log (16) = log(8) + log(8)
Loudness and loudness level are subjective measures of how loud a tone sounds -
Answers - true
When we say the ear is nonlinear, we mean that the ear ... - Answers - responds
differently to different frequencies
A sound that has a pressure corresponding to the threshold of hearing will have a sound
pressure level of - Answers - 0 db
Two or more tones within a critical band excite many of the same hair cells on the
basilar membrane and thus are difficult or impossible to distinguish as separate tones -
Answers - true
