Скачать или смотреть Mechanical Properties of Solids Class 11 | Elasticity Physics

Mechanical Properties of Solids Class 11 Elasticity Physics
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In physics, elasticity refers to the property of a material that allows it to return to its original shape and size after being deformed (stretched, compressed, or bent) by an external force. When the external force is removed, an elastic material will revert to its original configuration if the deformation was within its elastic limit.

The measure of how easily a material deforms and returns to its original shape is described by Young's modulus, shear modulus, and bulk modulus, depending on the type of deformation (stretching, shearing, or compressing).

When a material exceeds its elastic limit, it can no longer return to its original shape and undergoes plastic deformation or permanent change.

Steel is more elastic than rubber. This may seem counterintuitive because rubber stretches more easily than steel, but in physics, elasticity refers to the ability of a material to return to its original shape after being deformed, not how much it stretches.

Steel has a higher Young's modulus than rubber, meaning it requires more force to deform it, but it will return to its original shape more reliably once the force is removed. Rubber, on the other hand, deforms more easily but does not return to its original shape as perfectly as steel does, especially when stretched beyond certain limits.

So, while rubber is more flexible, steel is considered more elastic in the scientific sense.

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