Learning objective

(Physics only) Calculate pressure when volume changes at constant temperature.

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

Pressure in gases (physics only)

AQA GCSE PhysicsParticle model of matter

Study support

Understand this objective

Short explanation

(Physics only) Calculate pressure when volume changes at constant temperature. Practical lens: Link apparatus, readings, and uncertainty to the exact measurement named in the objective. In Pressure in gases (physics only), this means density links mass and volume, so the answer must preserve which quantity is being calculated. The answer should use the approved wording from Particle model and pressure, include pressure, volume, constant temperature, 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 79 is specific to (Physics only) Calculate pressure when volume changes at constant temperature and does not reuse a generic explanation from a neighbouring objective.

Key concepts

pressurevolume

Why it matters

This objective helps connect Pressure in gases (physics only) to exam-style questions, flashcards, and revision notes for Particle model and pressure.

Common mistakes

1 linked

Pressure Calculation Confusion: Remember that at constant temperature, increasing the volume of a gas decreases its pressure, as the particles collide less frequently with the container walls.

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