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Cambridge IGCSE Physics practice

Paper 4 structured question: Melting, boiling and evaporation

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1

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Melting, boiling and evaporation

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Paper 4Theory (Extended)1 marks

Understanding the differences between boiling and evaporation is essential in physics.

Description

Boiling and Evaporation

Boiling occurs at a specific temperature and involves bubble formation, while evaporation can occur at any temperature and only at the surface of the liquid.

  1. a

    State the main difference between boiling and evaporation.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Melting, boiling and evaporation

Paper 4Theory (Extended)4 marks

Description

Comparison of Boiling and Evaporation

Boiling involves the entire liquid and occurs at a specific temperature, while evaporation occurs only at the surface and can happen at any temperature.

  1. a

    Describe the processes of boiling and evaporation, highlighting their differences.

    Aim for approximately 4 distinct marking points.

    [4]