A recycling machine uses a permanent magnet with labelled north and south poles. An unmagnetised nickel fragment on the stationary conveyor is within the magnetic field of the south pole.
What can be concluded about the magnetic force on the nickel fragment?
The force acts away from the magnet because the south pole repels the nickel.
There is no force because the nickel is not a permanent magnet.
The force acts towards the magnet because the nickel becomes an induced magnet.
The force acts towards the magnet only when the north pole faces the nickel.
80 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.