(b)
Air resistance may hardly have an effect on the system, despite the likelihood that its
bulky and cylindrical shape provides poor aerodynamics. Thus, this factor can be mild in
terms of its potential to cause errors.
(c)
In regards to oscillations, I would expect to see a consistency with the results for the
sake of accuracy. Therefore, it will be a systematic error that is either positive or
negative.

2.In the case of spring, why it is important that the vibration amplitude should be kept in such a way that the mass will be somewhat stretched even at its highest position?
3.Make suggestions how to improve the experiment to make errors less significant?
4.
Compare the spring constant that you obtain in Part I and that in Part III to see how close they
are. Give reasons for the discrepancy.
In Part I, the spring constant is 0.0126 N/m and in Part III, the spring constant is 0.5449
N/m.
0.5449
−
0.0126
0.5449
×
100
=
98
As shown above, there is a huge difference in the two spring constants. One reason for
this may be that Part I’s exercise deals with stretching the spring and applying Hooke’s
Law while Part III deals with the oscillation period of a body of varied weights hung on a
spring. Another reason might be due to the measurement of different variables such
weight vs. displacement and mass of the total weight vs. the oscillation period squared.
5.
Make comment to the fitting in Graph 2 and Graph 3 on the slope and intercept. Explain why
your graph should be a straight line. Do your data verify equation (1) and (2)?
On Graph 2, the fitting of the regression line coincides with the points/values. On Graph
3 however, the points form a straight line until it gets to the third point, where it goes off
track. So only Graph 2 is a straight line; Graph 3 gets crooked at one point. Both graphs
should have come out to be straight lines in order to verify equation (1) and (2).
Nevertheless, as I explained earlier, this error was due to our team lacking patience and
honesty. Because of this, only one of our graphs comes out successful.
Conclusion
The lab was meant to demonstrate how to determine the spring constant in a system involving simple
harmonic motion as well as to verify the dependence and independence of certain variables in particular
equations of the period T.

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- Spring '16
- Physics, Force, Simple Harmonic Motion, Robert Hooke, oscillation period