AQA GCSE Physics · 8463
Specification 4.1.1.2 · Paper 1, Paper 2
The increase in a spring’s length from its original, unstretched length.
Revise: Changes in energyIf a spring lengthens from 45 cm to 80 cm, its extension is 35 cm, or 0.35 m.
- Revise: Hooke's Law and Elastic Potential Energy Calculations
The increase in an object's length: stretched length minus original length. For a compressed object, the corresponding change is its compression.