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12 Magnetism and the motor effect

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Question 22
F

A compass needle is a small magnet that is free to turn.

The Figure shows the Earth and some plotting compasses placed around it.

Figure

image

a.

The north-seeking end of each compass needle points towards the geographic North Pole.

Deduce the type of magnetic pole that is near the geographic North Pole.

Give a reason for your answer.

[2]
b.

Explain how the behaviour of compasses at different places on the Earth gives evidence that the core of the Earth is magnetic.

[3]
c.

A student holds a compass close to a large steel girder in a building.

The compass does not point north.

Explain why.

[2]
Markscheme

12 Magnetism and the motor effect Questions

  1. GCSE
  2. /Physics
  3. /12 Magnetism and the motor effect

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