Topic 12 – Magnetism and the motor effect


12.1 Recall that unlike magnetic poles attract and like magnetic poles repel 

12.2 Describe the uses of permanent and temporary magnetic materials including cobalt, steel, iron and nickel 

12.3 Explain the difference between permanent and induced magnets 

12.4 Describe the shape and direction of the magnetic field around bar magnets and for a uniform field, and relate the strength of the field to the concentration of lines 

12.5 Describe the use of plotting compasses to show the shape and direction of the field of a magnet and the Earth’s magnetic field 

12.6 Explain how the behaviour of a magnetic compass is related to evidence that the core of the Earth must be magnetic 

12.7 Describe how to show that a current can create…


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