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OCR A Level Physics B: Materials Exam – Questions with Correct Answers | Latest Updated

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Excel on the OCR A Level Physics B Materials exam with this comprehensive study guide featuring questions and correct answers. Covering essential materials physics topics including stress, strain, Young's modulus, elastic and plastic deformation, Hooke's law, spring networks (series and parallel), elastic strain energy, stress-strain graphs for ductile materials, material properties (brittle, elastic, stiff, hard, ductile, malleable, plastic, strong, tough), crystalline lattice structures of metals, polymers, ceramics, and Rayleigh's oil drop experiment. Perfect for A Level Physics students mastering materials science and preparing for exam success.

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OCR A Level Physics B
Course
OCR A Level Physics B

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OCR A LEVEL PHYSICS B
MATERIALS EXAM
QUESTIONS WITH
CORRECT
ANSWERS LATEST
UPDATED


Stress definition - ANS✔✔---the tension divided by the cross-sectional
area σ = F/A, Units: Nm^-2/ Pa


Strain definition - ANS✔✔---The extension divided by the original
length ε = x/L, No units


Page 1 of 6

, ]

Elastic strain energy - ANS✔✔---Area under a force-extension graph

Elastic strain energy equation - ANS✔✔---E = 1/2kx^2



Energy stored in a spring - ANS✔✔---1/2kx^2

Extension equation - ANS✔✔---Extension = new length - old length

plastic deformation - ANS✔✔---permanent deformation caused by
strain when stress exceeds a certain value

elastic deformation - ANS✔✔---region where the material will return to
its original shape when the stress is removed

Young's Modulus - ANS✔✔---A measure of the stiffness of an elastic
material and defined by stress/strain.

E = stress/ strain

E = (F/A)/(x/L)

E = gradient of stress strain graph.

Units: Pa or Nm^-2

Stress strain graph for ductile materials - ANS✔✔---

Metals - ANS✔✔ -- Crystalline lattice
Page 2 of 6
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Uploaded on
April 5, 2026
Number of pages
6
Written in
2025/2026
Type
Exam (elaborations)
Contains
Questions & answers

Subjects

  • ocr a level physics
  • physics b
  • materials exam
  • stress
  • strain
  • youngs modulus
  • hookes law
  • elastic deformation
  • plastic deformation
  • stress strain graph
  • spring constant
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