When a pendulum passes a marker, a timer displays 1 minute 20 seconds.
The pendulum passes the marker 15 more times from the same direction.
On the final pass, the timer displays a time of 3 minutes 05 seconds.
What is the time period of oscillation of the pendulum?
5.7 s5.7\text{ s}5.7 s
7.0 s7.0\text{ s}7.0 s
11 s11\text{ s}11 s
12 s12\text{ s}12 s
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.