Physics · Triple Science Higher
Magnetism and Electromagnetism
Spec 4.7Paper 21 required practical10 subtopics
Subtopics
1
Poles of a Magnet and Permanent Magnetism
Describe the properties of magnets, distinguish permanent from induced magnetism, and describe magnetic forces.
2
Magnetic Fields
Describe magnetic fields, draw field line patterns and explain how they show force and direction.
3
Electromagnetism
Describe the magnetic field around a current-carrying wire, solenoid and electromagnet.
4
Fleming's Left-Hand Rule and the Motor Effect
Apply Fleming's Left-Hand Rule to predict force on a current-carrying conductor in a magnetic field.
5
Electric Motors
Explain how the motor effect causes a coil to rotate in an electric motor.
6
Loudspeakers and Headphones
Describe how loudspeakers and headphones use the motor effect to produce sound.
7
Induced Potential and the Generator Effect
Describe how a potential difference is induced when magnetic flux through a conductor changes.
8
Uses of the Generator Effect
Describe alternators, dynamos and their role as generators of electrical power.
9
Microphones
Describe how microphones use electromagnetic induction to convert sound into electrical signals.
10
Transformers
Describe how transformers work and use the transformer equation to solve problems.
Higher tier only
Induced EMF and flux
Transformer efficiency calculations
Triple science extension
Loudspeakers
Induced potential
Generator effect
Microphones
Transformers
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