Three horseshoe magnets have worn pole markings. The tips of the first magnet are J and K, the tips of the second are L and M, and the tips of the third are N and P. Only tip M still shows its label, which reads S. In tests, tips K and L repel each other, and tips M and N attract each other.
Which pair of tips, not yet tested together, would repel each other?
tips J and P
tips L and P
tips K and P
tips J and N
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.