BRAINCAKEForce-Extension and Force-Compression Graphs
A force-extension graph shows how the extension of a sample changes as the tensile force on it increases. A force-compression graph is the same idea for a compressive force, plotting force against the reduction in length.
For a spring or metal wire the graph starts as a straight line through the origin: force is proportional to extension, so Hooke's law is obeyed. The gradient of this section is the stiffness:
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More in Solid Materials
- Hooke's Law
- Elastic Strain Energy
- Stress
- Strain
- The Young Modulus
- Stress-Strain Graph Metal Wire
- Experiment to Measure the Young Modulus
- Properties of Materials
All 14 lessons in Solid Materials · All Edexcel AS-level Physics topics