Question

1. what is elastic potential energy?

elastic potential energy is energy stored in an object as a result of its deformation.

1. when does an object have elastic potential energy?

when it is calculated by u = 1/2 kx².

Explanation:

Elastic potential energy is the energy stored in an object when it is deformed elastically. For a spring, the formula \( U=\frac{1}{2}kx^{2} \) (where \( k \) is the spring constant and \( x \) is the displacement from the equilibrium position) is used to calculate it. An object has elastic potential energy when it undergoes elastic deformation. Elastic deformation means that the object can return to its original shape and size after the external force is removed.

Answer:

1. Elastic potential energy is the energy stored in an object when it undergoes elastic deformation.
2. An object has elastic potential energy when it undergoes elastic deformation. The formula for calculating the elastic potential energy of a spring is \( U = \frac{1}{2}kx^{2} \) (where \( k \) is the spring constant and \( x \) is the deformation amount of the spring).