A student places a steel ball bearing on a flat wooden table. They slowly bring a magnetic wand towards the ball bearing.
Explain why the ball bearing starts to roll towards the wand only when the wand gets near to the ball bearing.
Practise Edexcel GCSE Physics Magnets and magnetic fields with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.