The Earth's Magnetic Field

The Earth behaves as if there is a bar magnet in it

 

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In the diagram above there is an imaginary magnet drawn, note the south pole of the magnet is in the northern hemisphere in order to attract the north pole of a compass.

Contents

History of magnetism, What is a magnet
What do magnets do, Test for a magnet
Magnetic fields
Theory of magnetism
Induced magnetism
Magnetic properties of iron and steel
Storing magnets
Making a magnet
Electro-magnets
Primary science applications
Fleming's Left Hand Rule
Self assessment
Comments, reflections and study action plan