Physics A-Level
Strain
What Strain means in Physics A-Level, as defined for OCR.
Definition of Strain
Check what you remember
Read the wording for your board, then hide it and explain Strain in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The fractional change in length, ε = x/L, where x is the extension and L the original length; it has no unit.
Topics that use Strain
- Mechanical properties of matter (OCR A-Level)
Related terms
- Brittle
- Ductile
- Elastic limit
- Elastic potential energy
- Force constant
- Graphical analysis of Hooke's law data
- Hooke's law
- Hooke's law behaviour
Using Strain in the exam
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