Two steel cogs, X and Y, are initially unmagnetised. In separate tests, cog X is placed close to the north pole of a permanent magnet and cog Y is placed close to the south pole of the same magnet. Each cog is supported so that it is free to move towards or away from the magnet, and there is a gap between the cog and the magnet. What happens to the cogs?
Both cogs move towards the magnet because induced magnetism produces attraction.
Cog X moves towards the magnet, but cog Y moves away because only a north pole attracts steel.
Both cogs move away from the magnet because induction produces like poles on the nearest surfaces.
Cog X moves away from the magnet, but cog Y moves towards it because induction makes both nearest sides north poles.
80 exam-style questions on AQA GCSE Physics 7.1 Permanent and induced magnetism, magnetic forces and fields, covering 7.1.1 Poles of a magnet and 7.1.2 Magnetic fields. Each one has a worked solution and a mark scheme showing where the marks go.