- #1
pschilk
- 1
- 0
Member advised to use the homework template for posts in the homework sections of PF.
Hello All,
I was performing an experiment in which the perod of oscllation of a pendulun at different lengths is measured using a light gate.
while performing the experiment i noticed that the string was slightly elastic, differing from the perfect pendulum.
I was attempting to figure outwhat kind of impact this may have had.
On my T^2 (s^2) vs l (m) graph the errors I could identify where the folliwng:
the linear regression has a y intercept of -0.04. Small but present. So all Periods where recorded slightly too low or all lengrhs slightly to small
the slope is slightly to high at 4.0769, which yields a value gor g of around 9.7 ms^-2 instead of 9.8. Perfect slope would be 4.028
And ofc there was some random error on each data point.
But i am not able to research how a slight elasticity in the cord would affect the results. Any ideas?
I was performing an experiment in which the perod of oscllation of a pendulun at different lengths is measured using a light gate.
while performing the experiment i noticed that the string was slightly elastic, differing from the perfect pendulum.
I was attempting to figure outwhat kind of impact this may have had.
On my T^2 (s^2) vs l (m) graph the errors I could identify where the folliwng:
the linear regression has a y intercept of -0.04. Small but present. So all Periods where recorded slightly too low or all lengrhs slightly to small
the slope is slightly to high at 4.0769, which yields a value gor g of around 9.7 ms^-2 instead of 9.8. Perfect slope would be 4.028
And ofc there was some random error on each data point.
But i am not able to research how a slight elasticity in the cord would affect the results. Any ideas?