Chapter 1: Thermal Physics and Ideal Gases

A-level PhysicsModule 5: Newtonian World & Astrophysics8 topicsHigher

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Releases 1 August 2026

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Module 5: Newtonian World and Astrophysics: Thermal Physics and Ideal Gases - Authored Long Answer Questions

Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.

4 questions25 marks37.5 min

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6 marksdescribestandardOCR A

For Thermal Physics and Ideal Gases, describe how ideal gas behaviour and kinetic theory applies to helium compressed isothermally in a syringe.

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6 markscalculatehardOCR A

Using helium compressed isothermally in a syringe, calculate a relevant OCR A Thermal Physics and Ideal Gases quantity and explain the physical or chemical meaning of the answer. Show equation, substitution, answer and unit.

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7 marksexplainhardOCR A

Thermal Physics and Ideal Gases - data from: helium compressed isothermally in a syringe

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The graph for Thermal Physics and Ideal Gases shows data from helium compressed isothermally in a syringe. Explain the pattern using the data and relevant physics principles.

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6 marksevaluatestandardOCR A

In helium compressed isothermally in a syringe, evaluate the experimental method or model assumptions used when applying ideal gas behaviour and kinetic theory.

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Start of Module 5: Newtonian World & Astrophysics

2. Circular Motion and Angular Quantities

Key learning objectives

Understand the key principles behind Thermal Physics and Ideal Gases.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.