Physics A-Level
Extension
What Extension means in Physics A-Level, as defined for OCR.
Definition of Extension
Check what you remember
Read the wording for your board, then hide it and explain Extension in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The change in length, not the total length, so always subtract the original length.
Topics that use Extension
- Springs (OCR A-Level)
Related terms
- Elastic and plastic behaviour
- Elastic limit
- Extension and compression
- Force constant
- Hooke's law
- Limit of proportionality
- Spring constant
- Compressive deformation
Using Extension in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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