BRAINCAKEMetal Wire Deformation
A metal wire obeys Hooke's law until the elastic limit. The graph shows that the line for unloading will be in the same place as the loading graph if the elastic limit is not exceeded.
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Key terms in this lesson
- elastic limit
- The point beyond which a material no longer returns to its original length or shape once the deforming force is removed.
- Hooke's law
- The extension of a spring or wire is directly proportional to the force applied, provided the limit of proportionality is not exceeded.
More in Materials
- Hooke's Law
- The Force Constant k
- Investigating Hooke's Law
- Elastic Potential Energy
- Rubber
- Polythene
- Tensile Stress
- Tensile Strain
All 14 lessons in Materials · All OCR AS-level Physics topics