How many Internal energy questions are there for 9702?

This page collects 3 recent Cambridge Physics (9702) past-paper questions tagged to Internal energy. Each links straight to instant marking against the official 9702 scheme.

How are Internal energy answers marked?

Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Internal energy first?

Start with the free Physics lesson on Internal energy, then come back and drill past-paper questions under timed conditions.

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9702 · topic questions

Internal energy

Physics3 questions

3 past-paper questions on Internal energy

9702/42 · May/June 20243 marks
With reference to molecular kinetic and potential energies, describe and explain how the internal energy of the system changes…
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9702/42 · May/June 20242 marks
State what is meant by the internal energy of a system.
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9702/41 · May/June 20242 marks
the internal energy of the gas. Explain your reasoning.
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Question stems are shortened previews. Open a question to attempt the full version and have it marked.

Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Internal energy (9702) past-paper questions — marked instantly

These are real Cambridge Physics past-paper questions on Internal energy. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9702 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Internal energy 9702 grade boundaries

Frequently asked questions

How many Internal energy questions are there for 9702?: This page collects 3 recent Cambridge Physics (9702) past-paper questions tagged to Internal energy. Each links straight to instant marking against the official 9702 scheme.
How are Internal energy answers marked?: Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Internal energy first?: Start with the free Physics lesson on Internal energy, then come back and drill past-paper questions under timed conditions.