To determine the period of oscillation of a mass suspended from a spring, a student times one complete vertical oscillation using a standard handheld stopwatch. Which modification to the experimental procedure will result in the greatest improvement in the accuracy of the measurement?
Timing the interval from the highest point to the lowest point of a single oscillation and multiplying the result by 2.
Measuring the time for 50 complete oscillations and dividing this total time by 50.
Replacing the stopwatch with a digital timer that records time to three decimal places.
Increasing the amplitude of the oscillation by pulling the mass down further before releasing it.
164 exam-style questions on CIE IGCSE Physics Physical quantities and measurement techniques, covering Physical quantities and measurement techniques. Each one has a worked solution and a mark scheme showing where the marks go.