Physics A-Level
Plastic deformation and permanent extension
What Plastic deformation and permanent extension means in Physics A-Level, as defined for AQA.
Definition of Plastic deformation and permanent extension
Check what you remember
Read the wording for your board, then hide it and explain Plastic deformation and permanent extension in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Occurs beyond the elastic limit, where the material does not return to its original length when the force is removed, leaving a permanent extension.
Topics that use Plastic deformation and permanent extension
- Bulk properties of solids (AQA A-Level)
Related terms
- Breaking stress
- Brittle versus ductile force–extension graphs
- Conservation of energy
- Conservation of energy in mechanical systems
- Density
- Dissipation of energy during plastic deformation
- Elastic limit
- Elastic potential energy stored in deformed materials
Using Plastic deformation and permanent 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.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge