What affects the frequency of a pendulum?
The longer the length of the pendulum the lower the frequency.
We tied one end of the string to two magnets and the other end 60 cm away from
the magnets. Then we pulled the magnet, at three different lengths, to the side and counted
the amount of swings back and forth in 30 seconds. We repeated this two other times with
the string at 40 cm and at 20 cm. Then we calculated the frequency using cycles over
seconds. We also added weight to the pendulum to see if it would change the amount of
As we swung the pendulum back and forth we saw that how far we pulled it out to
the side did not change the amount of cycles. Also as we added more weight to the
pendulum the cycles still did not change. Only the length of the string changed the amount
In this experiment we learned that the mass of the object at the end of the
pendulum did not change the amount of cycles in 30 seconds. Also the amount the
pendulum was pulled to the side did not change the number of cycles, but the length of the
string that was tied to the pendulum did change the amount of cycles. We saw that the
hypothesis was correct in that the longer the length of the string was the lower the
frequency was. Also the longer the string the less cycles in 30 seconds there were.
The amount of mass did not change a thing in the data that was taken. Also how
far we pulled the pendulum to the side did not change it. The only thing that we checked
that changed the amount of cycles was the length of the pendulum. This information
caused much thinking about other things that would or would not change the amount of
cycles. The only thing that I could think of to change the results other then changing the
length of the string was to make the air resistance a big factor.
...