成人论坛

Changes in energy stores - AQATypes of energy store

Energy can be described as being in different 鈥榮tores鈥. It cannot be created or destroyed but it can be transferred, dissipated or stored in different ways.

Part of Physics (Single Science)Energy

Types of energy store

There are many stores of , including:

  • magnetic
  • internal (thermal)
  • chemical
  • kinetic
  • electrostatic
  • elastic potential
  • gravitational potential
  • nuclear

Learn more on energy stores and systems in this podcast

Examples of energy stores

Energy storeDescriptionExamples
MagneticThe energy stored when repelling poles have been pushed closer together or when attracting poles have been pulled further apart.Fridge magnets, compasses, maglev trains which use magnetic levitation.
Internal (thermal)The total kinetic and potential energy of the particles in an object, in most cases this is the vibrations - also known as the kinetic energy - of particles. In hotter objects, the particles have more internal energy and vibrate faster.Human bodies, hot coffees, stoves or hobs. Ice particles vibrate slower, but still have energy.
ChemicalThe energy stored in chemical bonds, such as those between molecules.Foods, muscles, electrical cells.
KineticThe energy of a moving object.Runners, buses, comets.
ElectrostaticThe energy stored when repelling charges have been moved closer together or when attracting charges have been pulled further apart.Thunderclouds, Van De Graaff generators.
Elastic potentialThe energy stored when an object is stretched or squashed.Drawn catapults, compressed springs, inflated balloons.
Gravitational potentialThe energy of an object at height.Aeroplanes, kites, mugs on a table.
NuclearThe energy stored in the nucleus of an atom.Uranium nuclear power, nuclear reactors.
Energy storeMagnetic
DescriptionThe energy stored when repelling poles have been pushed closer together or when attracting poles have been pulled further apart.
ExamplesFridge magnets, compasses, maglev trains which use magnetic levitation.
Energy storeInternal (thermal)
DescriptionThe total kinetic and potential energy of the particles in an object, in most cases this is the vibrations - also known as the kinetic energy - of particles. In hotter objects, the particles have more internal energy and vibrate faster.
ExamplesHuman bodies, hot coffees, stoves or hobs. Ice particles vibrate slower, but still have energy.
Energy storeChemical
DescriptionThe energy stored in chemical bonds, such as those between molecules.
ExamplesFoods, muscles, electrical cells.
Energy storeKinetic
DescriptionThe energy of a moving object.
ExamplesRunners, buses, comets.
Energy storeElectrostatic
DescriptionThe energy stored when repelling charges have been moved closer together or when attracting charges have been pulled further apart.
ExamplesThunderclouds, Van De Graaff generators.
Energy storeElastic potential
DescriptionThe energy stored when an object is stretched or squashed.
ExamplesDrawn catapults, compressed springs, inflated balloons.
Energy storeGravitational potential
DescriptionThe energy of an object at height.
ExamplesAeroplanes, kites, mugs on a table.
Energy storeNuclear
DescriptionThe energy stored in the nucleus of an atom.
ExamplesUranium nuclear power, nuclear reactors.