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Cambridge IGCSE Physics practice

Paper 4 structured question: Conduction

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Conduction

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Paper 4Theory (Extended)3 marks

Comparing thermal conduction in solids and liquids.

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Comparison of Thermal Conduction

In solids, particles are fixed in place and closely packed, while in liquids, particles are closer than in gases but can move freely. This affects how heat is transferred in each state of matter.

  1. a

    Explain why thermal conduction is more efficient in solids than in liquids.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Conduction

Paper 4Theory (Extended)1 marks

Description

Thermal Conduction

Thermal conduction is the process of heat transfer through a material. In solids, particles are closely packed, while in gases, they are far apart. Liquids have particles that are closer than gases but still allow for movement.

  1. a

    State the reason why thermal conduction is inefficient in gases.

    Aim for approximately 1 distinct marking point.

    [1]