Physics · Oct / Nov 2022 · Paper 62 · Question 1
0625
As printed in the paper
The question as text
A student investigates temperature changes when mixing hot and cold water. Fig. 1.1 shows the set-up. thermometer beaker bench Fig. 1.1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)[1]
23(.0) (°C)
1(b)(i)[2]
any two from:
stir the mixture
view thermometer at right angles (to scale / reading) / at eye level
wait until (the reading on) the thermometer stops rising
thermometer not touching the sides / base of beaker
1(b)(ii)[2]
Δθ 1 = 42(.0) AND Δθ 2 = 27(.0)
unit °C
1(c)[2]
correct method
53.5 (°C)
1(d)[2]
statement to match results – expect NO
explanation of idea of beyond limits of experimental accuracy
(e.g. values not close (enough) / too far apart / > 10% difference)
1(e)[2]
any two from:
perpendicular viewing of scale / view at eye level / eye level with the surface of the water
take the reading at the bottom of the meniscus
place the measuring cylinder on a (horizontal) flat surface / ensure that measuring cylinder is vertical
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