Open main menu

Conservation of Energy

Contents

Key Stage 3

Meaning

Conservation of Energy is a Scientific Law which states that "Energy cannot be created or destroyed it can only be transferred from one store into another".

About Conservation of Energy

Conservation of Energy is important when calculating energy transfers.
The total energy in a closed system must remain the same, so when one energy store loses energy other energy stores must gain that amount of energy.

Key Stage 4

Meaning

Conservation of Energy is a Scientific Law which states that "Energy cannot be created or destroyed it can only be transferred from one store into another".

About Conservation of Energy

Conservation of Energy is important when calculating energy transfers.
The total energy in a closed isolated system must remain the same, so when one energy store loses energy other energy stores must gain that amount of energy.
If a system is an open system energy can leave the system, but the energy is not destroyed.
In a closed isolated system energy can be dissipated, which means it is still in the system but is wasted and cannot be recovered to perform useful work.

References

AQA

Conservation of energy, page 14, GCSE Physics; The Revision Guide, CGP, AQA
Conservation of energy, page 152, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
Conservation of energy, page 168, GCSE Combined Science; The Revision Guide, CGP, AQA
Conservation of energy, page 177, GCSE Chemistry, CGP, AQA
Conservation of energy, page 260, GCSE Combined Science Trilogy 1, Hodder, AQA
Conservation of energy, page 4, GCSE Physics, Hodder, AQA
Conservation of energy, pages 23, 27, 29, GCSE Combined Science Trilogy; Physics, CGP, AQA
Conservation of energy, pages 24, 28, 30, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Conservation of energy, pages 6-7, GCSE Physics; Third Edition, Oxford University Press, AQA
Conservation; of energy, pages 28-9, 99, 170, GCSE Physics; Student Book, Collins, AQA

Edexcel

Conservation of energy principle, pages 63, 64, GCSE Physics, CGP, Edexcel
Conservation of energy, law of, pages 316-317, GCSE Combined Science, Pearson Edexcel
Conservation of energy, law of, pages 34-35, GCSE Physics, Pearson Edexcel
Energy conservation, pages 63, 64, GCSE Physics, CGP, Edexcel
Law of conservation of energy, pages 316-317, GCSE Combined Science, Pearson Edexcel
Law of conservation of energy, pages 34-35, GCSE Physics, Pearson Edexcel
Law of conservation of mass, pages 218-219, GCSE Combined Science, Pearson Edexcel
Law of conservation of mass, pages 74-75, GCSE Chemistry, Pearson, Edexcel

OCR

Conservation of energy, page 202, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Conservation of energy, page 82, Gateway GCSE Physics; The Revision Guide, CGP, OCR
Law of conservation; Energy, pages 193, Gateway GCSE Physics, Oxford, OCR

Beyond the Curriculum