A pendulum is swinging. Five students each measure the time it takes to swing through twenty complete swings.
Three students measure the time as 32.4 s. Another student measures it as 32.1 s, and the fifth student measures it as 32.7 s.
What is the average period of the pendulum?
1.60 s1.60\text{ s}1.60 s
1.61 s1.61\text{ s}1.61 s
1.62 s1.62\text{ s}1.62 s
1.63 s1.63\text{ s}1.63 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.