O-Level Physics 6091 Practice Questions - Singapore-Cambridge GCE Ordinary Level Physics (Syllabus 6091) Exam

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A student measures the time for 20 complete oscillations of a pendulum instead of timing just one. Why is this method better?

It increases the period of the pendulum It changes the pendulum into a vector quantity It removes the need for a stopwatch It reduces the percentage uncertainty in the timing

Correct Answer:

It reduces the percentage uncertainty in the timing

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