Physics 107  Making Comparisons

Learning Goals:
Part I  Radiation Count Rate
You will be measuring the rate at which radioactive particles are
measured close to an alphaemitter. The radioactive particles are
emitted randomly, so you will need to use the statistical
techniques learned so far to come up with a measurement of the
average count rate (in counts/minute) and the uncertainty in that
count rate.
Part II
Part III
Marking Scheme
1 mark for writing down a plan for 20 minutes of datataking.
3 marks for measuring the radiation count rate (including
histogram, mean, standard deviation, and uncertainty in the mean).
1 mark for writing down a plan to remeasure pendulum periods in
25 minutes.
3 marks for highprecision measurments of pendulum period,
including tcomparisons of different angles
2 marks for scatter plot of period versus angle
3 marks for second measurement of count rate and analysis
1 mark for conclusion on whether the count rate has become smaller