‹ GCSE Combined and Separate Science
Magnetism and electromagnetism
Magnets and field lines, electromagnets, the motor effect and F = BIl, then loudspeakers, generators, microphones and transformers.
Start: Magnets and magnetic fields About 20 min, free
Lessons
Practise and test
By the end you can
Describe magnetic fields and plot them with a compass Explain how to make an electromagnet stronger and how one is used Use Fleming's left-hand rule and F = BIl (Higher) Explain loudspeakers, microphones and the generator effect (Physics only) Read peak, period and frequency from a generator's output graph Use the transformer equations (Physics only, Higher) Revision notes
Specifications AQA 8463 (Physics) 4.7AQA 8464 (Combined Trilogy) 6.7Pearson Edexcel 1PH0 and 1SC0 Topics 12 and 13OCR Gateway J249 and J250 P4 and P3.4
Next unit: Space physics Previous unit: Lenses, visible light, sound and black bodies
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