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Year 9 Science Physics Topic 6 Energy and The Future
|energy transferred by heating.
|the energy of visible light.
|energy transferred by electricity.
|the energy transferred by sound waves.
|Chemical potential energy
|the energy stored in matter, which can be released by a chemical reaction( such as combustion).
|Nuclear potential energy
|the energy stored in the nuclei of atoms.
|Elastic potential energy
|the energy stored by things that have been stretches or squashed and can spring back.
|Gravitational potential energy
|the energy stored in things that fall.
|energy being moved from one place to another, possibly with a change of the form of energy at the same time.
|anything in which we are studying changes. Systems can be very complex (e.g. a planet) or quite simple (e.g. a piece of metal).
|Law of conservation of energy
|states that energy cannot be created or destroyed, although energy may transform from one form to another.
|the proportion of input energy that is transferred to a useful form.