Physics · May / June 2022 · Paper 42 · Question 4

statement: bore of constant (cross sectional) area

explanation: idea of same movement / change in length of liquid / thread

AND

for same increase in volume / expansion (of liquid)

statement: (liquid has) constant thermal expansion

explanation: liquid moves same distance for each °C temperature rise

heat capacity / it is small

only uses / needs a small amount of (thermal) energy (to raise its temperature)

36 J

(E =) CΔT in any form

C1 (E =) 0.11 × (345 – 20) OR (ΔT =) 325 (°C)

C1