Figure shows three iron nails hanging in a chain from the lower end of a bar magnet.
Figure: A chain of three iron nails hanging from the lower end of a bar magnet

Give the pole induced at the top of nail 1 and the pole induced at the bottom of nail 1.
Explain why the three nails hang in a chain.
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.