A technician tests three cylindrical permanent magnets before fitting them into magnetic catches. The two flat faces of each magnet are its poles. The faces are labelled J–K, L–M and W–X.
Face J attracts face L. In a separate test, face M attracts face W.
Which pair of faces must be like poles?
J and W
J and X
L and X
K and X
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.