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A-Level H2 物理筆記
Chapter 20: Magnetism
Laws of magnetism
Magnetic properties of matter
(a) State the properties of magnets.
(b) Describe induced magnetism.
(c) Describe electrical methods of magnetization and demagnetization.
(d) Draw the magnetic field pattern around a bar magnet and between the poles of two bar magnets.
(e) Describe the plotting of magnetic field lines with a compass.
(f) Distinguish between the properties and uses of temporary magnets (e.g. iron) and permanent magnets (e.g. steel).
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