Learning objective

Explain thermal conduction in solids by discussing atomic or molecular lattice vibrations and the role of free (delocalised) electrons in metals.

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

Exam focus

Cambridge IGCSE PhysicsThermal physicsSupplement content

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Quick explanation

This point belongs to Conduction, especially Conduction outcomes.
You need to be able to explain thermal conduction in solids by discussing atomic or molecular lattice vibrations and the role of free (delocalised) electrons in metals.
The key ideas to know are Describe, Explain, and Understand.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplainUnderstand

Why it matters

This objective helps connect Conduction outcomes to exam-style questions, flashcards, and revision notes for Conduction.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 4Theory (Extended)1 marks

Description

In solids, heat is transferred through atomic vibrations and, in metals, through free electrons.

a
State the two main mechanisms of thermal conduction in solids.
Your answer
Aim for approximately 1 distinct marking point.
[1]

Revision notestopic notes

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