Energy stores & Transfers (Edexcel GCSE Physics): Flashcards

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Energy Stores & Transfers
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Nuclear energy location

Inside nuclei of atoms

What affects thermal energy?

Temperature - hotter objects have more thermal energy

Electrostatic energy storage

Two charges attracting or repelling

Chemical energy examples

Food, fuels, and batteries

Magnetic energy storage

Two magnets attracting or repelling

Elastic potential energy storage

Stretched or compressed objects

Kinetic energy objects

Moving objects

Gravitational potential energy condition

Object raised above ground

Energy conservation principle

Cannot be created or destroyed, only transferred

Lubrication effect

Reduces friction, less energy lost as heat

Higher thermal conductivity effect

Heat travels more easily through material

Efficiency formula

Useful outputTotal input\frac{\text{Useful output}}{\text{Total input}}

Lower thermal conductivity benefit

Less energy lost as heat

Wasted energy definition

Energy dissipated in less useful ways

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