OCR GCSE Combined Science A · J250
Specification P5.1b · Physics Paper 2
Revise: Energy Storage ChangesFood and fuels are examples of chemical stores that can supply energy during reactions.
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GCSE Combined Science · key term
An energy store that can decrease during chemical reactions, such as those involving food or a fuel reacting with oxygen.
Used by OCR
Specification P5.1b · Physics Paper 2
Revise: Energy Storage ChangesFood and fuels are examples of chemical stores that can supply energy during reactions.
Physics, Combined Science
Energy stored in substances such as fuels and batteries, which can decrease as chemical reactions take place.
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A battery contains energy in a chemical store. When it supplies a current to an appliance, this store decreases and energy is transferred electrically to the appliance. An electric current is a flow of charge; when the current transfers energy to a device, it does electrical work.