Lab Final - AC1 Generator
*Disclaimer: This is an experiment we were given by our lab instructor. It was made to be rather
“independent” of her, so our group is not really following a set order of directions this time.
...
Lab Final - AC1 Generator
*Disclaimer: This is an experiment we were given by our lab instructor. It was made to be rather
“independent” of her, so our group is not really following a set order of directions this time.
There is a chance of our plan being completely off, or us missing an important detail.
Introduction/Abstract: To complete the setup, we were given a magnet, a spring (with an
unknown spring constant), ring mass weights, a wire coil, an oscilloscope, as well as additional
items like clamps and poles. The main objective of this experiment was to develop a model that
would enable us to forecast the voltage oscillation frequency of a system given the total weight
being magnetized to a spring. If there is one, it should be found between mass and oscillation
frequency.
We experimented with frequencies and masses of 50, 100, 150, 200, and 250 for the two distinct
springs. We attached ring weights to the spring and rod that were connected above the wire coil.
The weight holder connecting the weights to the spring weighed 50 grams on its own, hence the
initial testing of 50 grams was conducted without any weights. Since we had no reliable method
of weighing the magnet within the lab since it was quite light, we ignored its weight. We
discovered that as more mass was added, the frequency reduced, and the spring constant
gradually increased (logarithmically). This implies that the frequency decreases with increasing
mass.
If we add more mass, the frequency eventually decreases because the mass increases much more
quickly than the spring constant. The frequency would still decrease even if the spring constant
essentially remained unchanged because of a stronger spring or a less significant change in mass.
If we didn't already know the spring constant, we couldn't determine the frequency of that
occurrence.
Intro: We are studying the relationship between the oscillation frequency and the mass of
weights on a spring all inside a voltage coil. The voltage coil is there to ensure a constant
frequency.
We have frequency:
This equation has the spring constant, the mass, and the frequency as variables. If you look at the
format, if we keep k constant, when m increases, that value in the square root becomes smaller,
making the result smaller. Our team then hypothesized that as the mass gets bigger, the
oscillation frequency will get smaller. They are inversely related. It makes sense because there is
the same force in the spring pushing and pulling, but the amount getting pushed or pulled
increases.
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