Physics

• In a bar magnet the magnetic force seems to come from each end. The ends of a bar magnet are called the poles.
• A magnetic field is a region where magnetic materials experience a force.
• Like poles repel and unlike poles attract
• When a piece of iron is placed next to a magnet it also becomes magnetised. This type of magnetism is called induced magnetism.
• What can be used to plot the magnetic field around a bar magnet?

  Plotting compass
• The direction of the magnetic field lines always points towards the north pole of a compass.
• The magnetic field is strongest where the field lines are closest together.