CAIE IGCSE Physics 4.1.3 Differences Between the Properties of Questions

Practise comparing soft iron and steel by how readily each magnetises and retains magnetism, then select the correct material for a device or test result.

Exam points

Select soft iron for electromagnets because it magnetises and demagnetises easily, select steel for permanent magnets because it retains magnetism, and infer material from retained magnetism or armature behaviour.

[Maximum number: 2]

Describe a method of demagnetising a bar magnet.

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CAIE IGCSE Physics 4.1.3 Differences Between the Properties of Questions question 1