Edexcel GCSE Physics · 1PH0
Specification 3.6 · Paper 1
Revise: Closed SystemsAn imaginary system boundary separates it from the surroundings. Before accounting for energy, decide what lies inside that boundary.
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GCSE Physics · key term
The dividing line between a system and its surroundings; it determines what is included in the energy account.
Used by Edexcel
Specification 3.6 · Paper 1
Revise: Closed SystemsAn imaginary system boundary separates it from the surroundings. Before accounting for energy, decide what lies inside that boundary.
Define the system boundary before describing any transfer. Energy that appears to be ‘lost’ may have crossed that boundary or entered a store in the surroundings.
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