A-LevelPhysicsDeformation of solids9702/12 · Oct/Nov 2014 · Q201 Mark

The stress-strain graph for a glass rod, up to the point at which it breaks, is shown below. [Figure 20.1] Which statement about the glass rod is correct?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

AHooke's law is obeyed for all values of stress up to the breaking point.

BThe glass is ductile.

CThe glass shows plastic deformation.

DWhen the cross-sectional area of the rod is doubled, the ultimate tensile stress of the rod is halved.

✓ Correct answer

A: Hooke's law is obeyed for all values of stress up to the breaking point.

Oracle Prep sorts past-paper questions by topic, so you can drill Deformation of solids and see which topics are most likely to come up next.

Topic: Deformation of solids, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2014 Paper 1 Variant 2, question 20.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content