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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Sound

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3

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4

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Sound

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Paper 3Theory (Core)4 marks

Understanding echoes in various environments.

Description

Echoes in Different Environments

Consider how echoes are experienced in different settings such as mountains, canyons, and urban areas. Discuss the factors that influence the clarity and timing of echoes in these environments.

  1. a

    Discuss the factors that affect the clarity and timing of echoes in canyons compared to urban areas.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 3 structured question: Sound

Paper 3Theory (Core)2 marks

Description

Echo Phenomenon

An echo occurs when sound waves reflect off a surface and return to the listener. Consider the factors that influence this phenomenon.

  1. a

    Define an echo and explain how it is produced.

    Aim for approximately 2 distinct marking points.

    [2]