Why does the same end of a compass needle always point north, when an unmagnetised iron needle would not behave in this way?
The compass needle is a magnet, so it has a north pole of its own
The compass needle is made of iron, so it is attracted to the north
The compass needle is heavier at one end, so that end swings north
The compass needle is charged at one end, so that end is pulled north
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.