Two bar magnets lie end to end with unlike poles facing. Both magnets are turned end for end without changing the gap. One magnet is then turned end for end again. What happens after each stage?
After both turn, they repel; after one turns again, they repel.
After both turn, they repel; after one turns again, they attract.
After both turn, they attract; after one turns again, they attract.
After both turn, they attract; after one turns again, they repel.
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.