# Physics Topic 6 - Energy and The Future

Mind Map by , created over 6 years ago

## GCSE Physics Mind Map on Physics Topic 6 - Energy and The Future, created by lydia_ward on 04/14/2013.

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Physics Topic 6 - Energy and The Future
1 Energy Transfers
1.1 Thermal (heat energy), Light, Electrical, Kinetic (movement energy), Sound, Chemical Potential (such as the energy stored in batteries and fuels).
1.1.1
1.1.2 There are nine forms of energy.
1.1.2.1 Nuclear Potential (the energy stored in the nuclei of atoms), Gravitation Potential (the energy stored in things that can fall).
1.1.2.1.1
1.1.2.2 Elastic Potential (the energy stored by things that have been stretched or squashed and can spring back).
1.2 Energy can be moved from one place to another, this is called Energy Transfer. When this happens, energy often changes from one form to another.
1.3 Output Energy = Input Energy
1.4 Energy Conversion Diagrams (sometimes known as a Sankey Diagram).
1.4.1 This diagram shows the amount of energy converted or transferred. The width of the arrows represents the amount of energy in joules.
2 Efficiency
2.1 Efficiency means how good a device is at converting energy into useful forms is known as its efficiency.
2.2 useful energy transferred by the device ---------------------------------------------------- x 100% total energy supplied to the device
2.2.1 Efficiency =
2.3 Household goods are given an energy rating. Rather thatn give these as percentages, they are given as a colour coded grade from 'A' to 'G'.
2.3.1 With 'A' being the most efficient.