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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Alloys and their properties

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Alloys and their properties

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Paper 3Theory (Core)2 marks

Understanding the structure of alloys is crucial in materials science.

Diagram Description

Diagram of an Alloy Structure

The diagram shows the arrangement of atoms in a steel alloy, highlighting the presence of carbon atoms within the iron matrix.

  1. a

    Analyse Describe the significance of the carbon atoms in the structure of steel.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Alloys and their properties

Paper 3Theory (Core)3 marks

Description

Properties of Alloys

Alloys are often stronger and more resistant to corrosion than their component metals, making them suitable for construction and manufacturing.

  1. a

    Explain Why are alloys preferred over pure metals in construction?

    Aim for approximately 3 distinct marking points.

    [3]