Objective:
The purpose of this
experiment is to study the mechanical wave’s property, by measuring its
wavelength and frequency; we can derive the speed of a wave.
Procedures:
1. Create a steady wave. Measure the distance between two people who
hold the spring.
2.
Determine the wavelength of the spring
and record the period of the wave.
3.
Calculate the frequency. Set another
steady wave with different distance.
4.
Repeat and record the data.
Results:
We run three trails
for each wavelength and count the time for ten periods.
Wavelength
/ cm
|
88
|
100
|
60
|
Average
period / s
|
0.43
|
0.49
|
0.50
|
Average
frequency / Hz
|
2.33
|
2.04
|
2.00
|
Product
of wavelength and frequency
|
204.65
|
204.08
|
120.00
|
Discussion:
Due
to the fact that human generates this wave; the speed of the wave cannot be
accurately controlled. The first two sets of data are good while the third has
big difference with respect to the other two. Other factors may affect the
results can be the insufficient precision in measuring both time and
wavelength.
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