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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

Stainless steel is commonly used in cutlery due to its unique properties.

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Properties of Stainless Steel

Stainless steel is an alloy primarily made of iron, chromium, and sometimes nickel. It is known for its hardness and resistance to rust, making it ideal for kitchen utensils.

  1. a

    Explain why stainless steel is preferred for cutlery.

    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

Alloy Applications

Alloys are used in many applications due to their enhanced properties compared to pure metals. For example, stainless steel is used in cutlery, while bronze is used in musical instruments.

  1. a

    Discuss the advantages of using alloys like stainless steel over pure metals.

    Aim for approximately 3 distinct marking points.

    [3]