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AQA GCSE Physics

52 bytes added, 16:29, 22 April 2019

→‎4.1.1 Energy changes in systems, and how

==4.1 Energy==

===4.1.1 Energy changes in ~~systems~~a system, and ~~how~~ the ways energy is stored before and after such changes===

====4.1.1.1 Energy stores and systems====

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