Final answer:
Elasticity is the property of objects to return to their original shape after deformation. Elastic potential energy is stored during deformation and released when the object returns to its original state.
Explanation:
Elasticity is the tendency of solid objects to return to their original shape after external forces causing deformation are removed. Different materials exhibit elasticity due to unique structural properties, such as polymer chains stretching in rubbers and resizing crystalline cells in metals.
Elastic potential energy is stored when an elastic object deforms, like a spring stretching. This stored energy is released when the object returns to its original shape.
For example, when a sheet of paper is gently bent and then released, displaying elastic behavior, it returns to its original state as internal forces causing the deformation are conservative.
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