Physics · May / June 2022 · Paper 62 · Question 1
0625
As printed in the paper
The question as text
A student investigates the balancing of a metre rule. Fig. 1.1 shows the apparatus. 0 100 10.0 cm mark 50.0 cm mark pivot bench metre rule P Q a b Fig. 1.1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)[1]
explanation or diagram showing:
equal readings either side of the 10 cm mark OR
average of readings either side of the mark = 10
1(b)[2]
71.2 – 50(.0)
21.2
1(c)[4]
axes correctly labelled with quantity AND unit AND the right way round
suitable scales (filling ⩾ ½ the grid)
five plots correct to ½ small square
good line judgement, thin, continuous line
1(d)[2]
triangle method clearly shown on graph, covering at least ½ of candidate’s line between extreme plots
G = 1.6–1.9 inclusive
1(e)[2]
R = G
R given to 2 or 3 significant figures
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