A-LevelPhysicsDeformation of solids9702/12 · Oct/Nov 2009 · Q191 Mark
Which row best defines elastic and plastic behaviour of a material?
Aelastic behaviour of a material: extends only within the limit of proportionality, plastic behaviour of a material: extends beyond the limit of proportionality
Belastic behaviour of a material: has a linear force-extension curve, plastic behaviour of a material: has a horizontal force-extension curve
Celastic behaviour of a material: obeys Hooke's Law, plastic behaviour of a material: extends continuously under a steady load
Delastic behaviour of a material: returns to its original shape and size, plastic behaviour of a material: suffers permanent deformation
✓ Correct answer
D: elastic behaviour of a material: returns to its original shape and size, plastic behaviour of a material: suffers permanent deformation
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