Question

Amount of external energy required to deform an elastic body is called:

• A. Elastic energy
• B. Plastic energy
• C. Strain energy
• D. Thermal energy

Hint:

Strain energy is crucial in material science as it helps understand how materials store and release energy during deformation. It is a measure of the material's ability to return to its original shape after deformation.

Answer 1

The Correct Option is C

Strain energy is the energy stored in a body due to deformation under external forces. When an elastic body is deformed, the energy required to deform the body elastically is stored as strain energy. This energy is released when the force is removed, and the body returns to its original shape. Plastic energy refers to permanent deformation, while thermal energy relates to heat, not deformation. Thus, the correct answer is strain energy.