BRAINCAKERubber
Rubber is an elastic polymer that can be stretched to several times its original length and still return to that length when the load is removed.
Rubber does not obey Hooke's law. Its limit of proportionality is very low, and the force-extension graph is curved: it is easy to stretch at first as the tangled polymer chains straighten, then becomes much stiffer once they are fully straightened.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- Limit of proportionality
- The point beyond which the extension of a material is no longer directly proportional to the applied force.
More in Materials
- Tensile Strain
- Young Modulus
- Stress-Strain Graph for Metal Wire
- Definitions
- Other Stress-Strain Curves
- Loading and Unloading
- Strain Energy
- Polythene
All 18 lessons in Materials · All AQA AS-level Physics topics