The purpose of this lab is to deepen our understanding of
sound waves.
The procedure: we set up a microphone with labPro and
recoded the voice of two students and a tuning fork.
Me
I would say the wave periodic since it repeats the pattern.
We determined there are 2 waves. One
wave has two peaks. The probe collects data for 0.03 seconds which is like a
flash of lightning. The period is the difference in time for the two
peaks. The frequency is
To find the
wavelength we use
v is the speed of
sound of 340m/s. The amplitude is the
difference between the highest peak to the lowest trench.
|
Period(s)
|
0.0135
|
|
Frequency(Hz)
|
74.112
|
|
Wavelength(m)
|
4.6
|
|
Amplitude
|
0.261
|
Quoc
The graphs are similar in shape but Quoc has a lower period.
The most significant difference is he has a larger amplitude since he was
louder.
|
Period(s)
|
0.0153
|
|
Frequency(Hz)
|
65.359
|
|
Wavelength(m)
|
5.2
|
|
Amplitude
|
0.848
|
Tuning fork
The graph is sinusoidal compared to human voice.
Softer tuning fork
The amplitude is
smaller but the period and frequency is the same.
No comments:
Post a Comment