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GCSE Physics notes: Magnetic energy stores

TYPES OF ENERGY - examples explained

(j) Magnetic energy stores

Doc Brown's GCSE 9-1 Physics Revision Notes

Suitable for GCSE/IGCSE Physics/Science courses or their equivalent

Magnetic or electromagnetic energy transfer

With magnetic energy you are dealing with the repulsion of like poles and the attraction of unlike poles:

(N <=> N and S <=> S) and the attraction of unlike poles (N =><= S).

Magnetic energy stores in action.

Work is being done as the magnetic poles repel or attract.

Any attraction or repulsion movement of magnetic poles involves a force acting through a distance, so work is done and energy must be transferred.

Work is done when a magnet picks up an object like a piece of iron.

The interaction of magnetic fields with the flow of an electric current or production of magnetic fields by means of an electric current have many applications, and all involve energy transfers-conversions. See ...

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Energy resources, energy transfers, work done and electrical power supply revision notes index

Types of energy & stores - examples compared/explained, calculations of mechanical work done and power

Chemical energy stores  * Elastic potential energy stores, calculations  *

Gravitational potential energy and calculations  *  Kinetic energy stores and calculations  *  Nuclear energy store

Thermal energy stores  *  Light energy  * Sound energy  * Magnetic energy stores

Renewable energy (1) Wind power and solar power, advantages and disadvantages gcse physics revision notes

See also Renewable energy - biomass - biofuels & alternative fuels, hydrogen, biogas, biodiesel gcse chemistry notes

The Usefulness of Electricity gcse physics electricity revision notes

and The 'National Grid' power supply, mention of small scale supplies, transformers gcse physics notes

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