Practical Physics and Experimental Skills
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Free Physics Q & A Practice
1 of 5 free exam-style exercises in this topic
A student measures a pendulum period by timing 20 oscillations five times: 31.8 s, 32.2 s, 31.9 s, 32.1 s and 47.0 s. What is the best estimate of the period?
Trial
Time for 20 oscillations / s
1
31.8
2
32.2
3
31.9
4
32.1
5
47.0
Select one option.
A
1.28 s
B
1.99 s
C
7.00 s
D
35.0 s
E
1.60 s
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