A-LevelPhysicsDeformation of solids9702/12 · Feb/Mar 2025 · Q191 Mark
A wire is extended by a tensile force so that its deformation is elastic. What is meant by elastic deformation?
AThe extension of the wire is proportional to the tensile force.
BThe extension of the wire is not proportional to the tensile force.
CWhen the tensile force is removed, the wire does not return to its original length.
DWhen the tensile force is removed, the wire returns to its original length.
✓ Correct answer
D: When the tensile force is removed, the wire returns to its original length.
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