Question #80182
1 Answer
Oct 14, 2015
Percentage uncertainty = precision / measurement × 100
Explanation:
Percentage uncertainty = precision / measurement × 100
The precision of an instrument (e.g. stop watch) is the smallest scale division. The measurement of time in the case above is the total time for 20 oscillations. 20 oscillations are timed in order to increase the amount of time and reduce the impact of the uncertainty (0.2 s) on the measurement.
Please excuse me for not providing the actual answer, but I think in this case it would be helpful to outline the procedure for the student to then carry out.
