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Compression

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Key Stage 3

Meaning

To compress is to make something shorter or smaller in volume by applying a force.

About Compression

Gas can be compressed easily but solids and liquids cannot be compressed because the particles in a solid and liquid are already touching.

Key Stage 4

Meaning

To compress is to make something shorter of smaller in volume by applying a force.

About Compression

Gas can be compressed easily but solids and liquids cannot be compressed because the particles in a solid and liquid are already touching.
A spring can be compressed to become shorter due to pair of equilibrium forces.

References

AQA

Compression, page 159, GCSE Physics; Third Edition, Oxford University Press, AQA
Compression, pages 176-7, 194, 206, 210, 212, 257, GCSE Physics; Student Book, Collins, AQA
Compression; of gas, page 99, GCSE Physics; Student Book, Collins, AQA

Edexcel

Compression, page 182, GCSE Physics, Pearson Edexcel
Compression, page 414, GCSE Combined Science, Pearson Edexcel
Compressions (waves), pages 88, 89, 103, 104, GCSE Physics, CGP, Edexcel

OCR

Compressions, pages 136, Gateway GCSE Physics, Oxford, OCR