Compare the arrangement and motion of the particles in ice and in liquid water.
Compare Say something about both, and make the comparison explicit rather than leaving it implied.
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0625/04/SP/23 · question 5 of 5 in this topic
Question 5
A lake has a layer of ice on its surface. The area of the lake is 1800 m². The ice has a thickness of 0.025 m. The density of ice is 920 kg/m³.
Calculate the mass of ice on the lake.
Calculate Show your working. The method can earn marks even when the final value is wrong, and a bare answer often cannot.
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Suggested time: 3 min
A lake has a layer of ice on its surface of area 1800 m², thickness 0.025 m and density 920 kg/m³ (mass of ice = 41400 kg). At night, the temperature of the ice on the lake falls by 3.5 °C. The specific heat capacity of ice is 2.1 × 10³ J/kg °C.
Calculate the change in energy as the temperature falls.
Calculate Show your working. The method can earn marks even when the final value is wrong, and a bare answer often cannot.
Your answer
Suggested time: 3 min
0625/04/SP/23Cambridge IGCSE Physics 0625 · Specimen 2023 · Paper 4 · sit the whole paper