2023 · Specimen · 0625/03 | Q6

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Question (6 of 12)6 marks · Practise this topic →

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Available practice: 75 of 80 marks. Parts 8(b), 10(d) await marking support. Scores cover available parts only.

A student constructs a device for absorbing thermal energy from the Sun. The student places the white plastic pipe in sunlight. The cold water flows slowly from Tank A to Tank B. Energy from the Sun heats the water in the pipe.

(a)Determine the rise in temperature of the water as it passes between Tank A and Tank B.

Fig. 6.1 — see the question text for what it shows

Fig. 6.2 — see the question text for what it shows

Answer guidance

Determine Work it out from what you are given or from the figure, and show how you got there.

[1 mark]

A student constructs a device for absorbing thermal energy from the Sun: cold water flows slowly from Tank A through a long white plastic pipe placed in sunlight into Tank B, and energy from the Sun heats the water in the pipe.

(b)The student wants to increase the thermal energy absorbed by the water in the pipe. State three improvements she can make to increase the thermal energy absorbed.

Answer guidance

State A short answer. No explanation is needed, and adding one cannot earn extra marks.

[3 marks]

A student constructs a device for absorbing thermal energy from the Sun: water flows slowly through a long plastic pipe placed in sunlight, and energy from the Sun heats the water in the pipe.

(c)Describe the processes that transfer the thermal energy from the Sun to the water inside the pipe.

Answer guidance

Describe Say what happens, in order. Reasons are not required unless the question also asks why.

[2 marks]

0625/03/SP/23Cambridge IGCSE Physics 0625 · Specimen 2023 · Paper 3 · Question 6