What is Hooke’s Law of Elasticity in Physics

Hooke’s Law of Elasticity in Physics




An English Physicist and Chemist Robert Hook discovered this law in 1678.



“Strain produced is proportional to the stress exerted within the elastic limit.


Elastic Limit: The point at which a material becomes plastic is called elastic limit on yield point.


Yield Point: The yield point is the point at which the material begins to flow. It is also the point between elastic region and plastic region.


Elastic Region: When the material obey’s Hook’s Law, it is said to be in Elastic Region.


Plastic Region: When stress is applied beyond the elastic limit, the graph is no longer a straight line. In this case stress produces a permanent change in the material. The material is said to be in its Plastic Region.


Breaking Point: The material breaks at a certain point called the Breaking Point of the material.

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