Physics · Oct / Nov 2022 · Paper 42 · Question 3
0625
As printed in the paper
Show the answer and mark scheme
3(a)(i)[1]
any one from:
fossil fuel / named fossil fuelbiofuel / wood / cropshydrowavewindsolar cell / panel.3(a)(ii)[1]
geothermal OR nuclear
3(b)(i)[2]
yes OR it is renewable
tides are continuous / regular / happen every day / always there / owtte OR Moon / Sun always there OR nothing is consumed / used up OR tides are an unlimited resource
3(b)(ii)[4]
(power =) 4800 W
KE = ½mv2
C1 (P =) E / t OR (P =) KE / s OR (KE / s =) ½ × 6(.0)×103 × 2(.0)2
C1 electrical (output) power = 40% of KE / s OR 0.4 × 12 000
C1
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