Hooke’s Law of Elasticity in Physics

 

Introduction:

 

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

 

Statement

“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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