Elasticity

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A deforming force causes a change in the size, shape, or both of a body. That change is called deformation.

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Elasticity is that property of the material of a body by virtue of which the body opposes any change in its shape or size when deforming forces are applied to it, and recovers its original state as so…

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Quartz is treated as an ideal example of a body that regains its original shape very well after deformation. Wax or wet clay is treated as an ideal example of a body that keeps its deformed shape and …

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The maximum deforming force up to which a body retains its property of elasticity is called the limit of elasticity.

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Given: F = 200 N, A = 4 m² Formula: stress = F/A Step 1: stress = 200/4 N m⁻² Step 2: stress = 50 N m⁻² Answer: 50 N m⁻²…

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Stress = F/A, where F is external force and A is area of cross-section. Unit: N m⁻². Dimensional formula: [ML⁻¹T⁻²].

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An internal restoring force develops inside the body and acts opposite to the applied force. This force tries to bring the body back to its original state. Stress is the restoring force per unit area.

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Given: increase in length = 0.004 m, original length = 2 m Formula: longitudinal strain = increase in length / original length Step 1: strain = 0.004/2 Step 2: strain = 0.002 Answer: 0.002 (no unit)…