A soft iron nail is attracted to the north pole of a magnet. The magnet is turned so that its south pole is at the same distance from the same end of the nail. Which statement explains what happens next?
The nail is still attracted because its induced poles reverse.
The nail is now repelled because its induced poles stay unchanged.
The nail is still attracted because its induced poles stay unchanged.
The nail is now repelled because its induced poles reverse.
70 exam-style questions on Edexcel GCSE Physics 12.1 Magnets and magnetic fields, covering 12.1.1 Magnetic poles, 12.1.2 Magnetic materials; permanent and induced magnets, 12.1.3 Magnetic fields, and 12.1.4 Plotting compasses and the Earth's magnetic field. Each one has a worked solution and a mark scheme showing where the marks go.