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WorksheetsPhys 161 Lab 8
Total questions: 11
Worksheet time: 4mins
What does a node represent in a standing sound wave?
Maximum pressure
Maximum air displacement
Zero air displacement
Maximum sound speed
In an open tube, the displacement at the ends is:
Always zero
Always maximum
Alternates between zero and maximum
Dependent on the frequency
What is the formula for the resonance condition in an open tube (corrected)?
L=nλ/4
L=nλ/2
L+0.4d=nλ/2
L+0.8d=nλ/2
Which frequencies appear in a closed tube resonance?
All even integers
Multiples of the fundamental frequency only
Only odd harmonics
Only prime numbers
What device is used to generate the signal sent to the speaker?
Oscilloscope
Function generator
Microphone
Piston
How is the fundamental frequency (f₀) verified in the experiment?
It is equal to the speed of sound
It gives a sequence of odd or consecutive integers when used as a divisor
It is the highest frequency detected
It is calculated from the tube’s diameter
What is the corrected resonance condition for a closed tube?
L=nλ/2
L=nλ/4
L+0.4d=nλ/4
L+0.8d=nλ/4
What happens to the sound as you approach a resonant frequency during the experiment?
It becomes inaudible
It stays constant
It becomes distorted
It becomes louder
What does the slope of the L vs. n graph represent in the closed tube analysis?
Tube length
Resonant frequency
Wavelength
Speed of sound
How is the speed of sound calculated in this lab?
v=fλ
v=λ/f
v=λ+f
v=λ−f
Is there a deadline for submitting a lab appeal?
You have 10 days to appeal the grade after it was displayed on Moodle. Any appeals after this period are not accepted.
You can submit appeal in the end of semester
You have 3 days to appeal the grade after it was displayed on Moodle. Any appeals after this period are not accepted.
You have 5 days to appeal the grade after it was displayed on Moodle. Any appeals after this period are not accepted.
