A-LevelPhysicsDeformation of solids9702/12 · Oct/Nov 2012 · Q261 Mark

The diagram shows the force-extension graphs for two materials, of the same dimensions, loaded to fracture. [Figure showing force-extension graphs] What describes the behaviour of the materials?

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ABoth materials are brittle.

BBoth materials obey Hooke's law.

CBoth materials are plastic.

DBoth materials have the same ultimate tensile stress.

✓ Correct answer

D: Both materials have the same ultimate tensile stress.

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Topic: Deformation of solids, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2012 Paper 1 Variant 2, question 26.

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