Learning objective

(Physics only) (HT only) Explain that compressing a gas can increase its internal energy.

Read the explanation, check the common trap, then practise with flashcards and questions.

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At a glance

Flashcards

Questions

Topic

Particle model and pressure

Subtopic

Increasing the pressure of a gas (physics only) (HT only)

AQA GCSE PhysicsParticle model of matter

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Understand this objective

Short explanation

(Physics only) (HT only) Explain that compressing a gas can increase its internal energy. Method lens: First identify the measured quantity, then match the equation or particle idea to the command word. In Increasing the pressure of a gas (physics only) (HT only), this means gas pressure comes from particle collisions with container walls. The answer should use the approved wording from Particle model and pressure, include internal energy, HT only, and avoid drifting into another section of Particle model of matter. For revision, practise saying the exact objective aloud, then add the one calculation, particle movement, collision, graph, or practical detail that makes the statement true. A strong exam response for checkpoint 85 is specific to (Physics only) (HT only) Explain that compressing a gas can increase its internal energy and does not reuse a generic explanation from a neighbouring objective.

Key concepts

Internal energyCompression work

Why it matters

This objective helps connect Increasing the pressure of a gas (physics only) (HT only) to exam-style questions, flashcards, and revision notes for Particle model and pressure.

Common mistakes

1 linked

Confusing Internal Energy with Temperature: To fix this, remember that while increasing internal energy can lead to a temperature increase, it depends on the specific heat capacity of the gas and the amount of work done on it. Focus on understanding the relationship between internal energy, temperature, and the physical processes involved.

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