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Learning objective

Explain how to plot magnetic field lines using a compass or iron filings, and how to use a compass to find the direction of the magnetic field.

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Cambridge IGCSE PhysicsElectricity and magnetismCore content

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Quick explanation

Explain how to plot magnetic field lines using a compass or iron filings, and how to use a compass to find the direction of the magnetic field

  • This point belongs to Simple phenomena of magnetism, especially Simple phenomena of magnetism outcomes.
  • You need to be able to explain how to plot magnetic field lines using a compass or iron filings, and how to use a compass to find the direction of the magnetic field.
  • The key ideas to know are Describe and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplain

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This objective helps connect Simple phenomena of magnetism outcomes to exam-style questions, flashcards, and revision notes for Simple phenomena of magnetism.

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Paper 3 structured question: Simple phenomena of magnetism

Paper 3Theory (Core)1 marks

Description

Magnetic Field Visualization

A student uses a compass and iron filings to visualize the magnetic field around a bar magnet. The compass needle points from the north to the south pole, and the iron filings create a pattern on the paper above the magnet.

  1. a

    State the direction of the magnetic field lines around a bar magnet.

    Aim for approximately 1 distinct marking point.

    [1]
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