BRAINCAKEProperties of Materials
Engineers use precise words to describe how materials behave under a force.
Stiff: needs a large force for a small extension. A stiff material has a high Young modulus; steel is much stiffer than rubber.
Strong: needs a large stress to break it. Strength is measured by the ultimate tensile stress, the maximum stress the material can withstand.
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Key terms in this lesson
- young modulus
- The ratio of stress to strain for a material undergoing elastic deformation, a measure of its stiffness.
More in Solid Materials
- Strain
- The Young Modulus
- Stress-Strain Graph Metal Wire
- Experiment to Measure the Young Modulus
- Exam Style Question - 1
- Exam Style Question - 1
- Exam Style Question - 1
- Springs in Series
All 14 lessons in Solid Materials · All Edexcel AS-level Physics topics