Magnetism and magnetic materials
2 marks · NormalExplain why plastic is not attracted to a magnet, while iron is.
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Must show: Iron is a magnetic material, Plastic is a non-magnetic material
Also accept: Iron contains magnetic domains/plastic does not
Common mistakes: Claiming plastic is weakly magnetic; Mixing up conductor/insulator with magnetic/non-magnetic
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Explains iron is a magnetic material.
B2 · 1 mark · Explains plastic is a non-magnetic material.
Worked solution
Iron is a magnetic material, so it is attracted to a magnet. Plastic is a non-magnetic material and is not affected by a magnet.