Physics · May / June 2021 · Paper 61 · Question 1
0625
As printed in the paper
The question as text
A student investigates the period of a pendulum. Fig. 1.1 and Fig. 1.2 show the arrangement. one complete oscillation clamp clamp floor x bob d l Fig. 1.1 Fig. 1.2
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)[1]
x = 50.0 (cm)
1(b)(i)[1]
T = 1.67
1(b)(ii)[2]
T 2 = 2.79 (or 2.789 or 2.7889)
T 2 given to 3 significant figures
1(b)(iii)[1]
cm, s, s, s2
1(c)[4]
Graph:
Axes correctly labelled with quantity and unit and right way round
Suitable scales
All the plots from their table correct to better than ½ small square
Good line judgement, thin, continuous line
1(d)[1]
No. Not through origin
1(e)[1]
(Timing) errors less significant / have a smaller percentage uncertainty / the error is spread over 10 periods / is divided by 10
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