A student hangs an iron nail from the south pole of a bar magnet. A second iron nail then hangs from the bottom of the first nail.
Explain why the first nail becomes a magnet.
The bar magnet is taken away. Describe and explain what happens to the two nails.
40 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.