Gently pressing a balloon compresses the air inside, storing elastic potential energy. When the force is withdrawn, the stored energy allows the balloon to return to its original shape, demonstrating its capability to do work in the process.

An object possessing energy has the capability to do work. Energy enables an object to exert force on another object, facilitating the transfer of energy and the potential for work to be done.

Winding a toy involves storing mechanical energy in a spring or elastic material, which is then converted into kinetic energy as the toy is released, causing it to move.

The potential energy of the raised hammer is converted into kinetic energy as it falls. Upon impact with the nail, this kinetic energy is transferred to the nail, driving it into the wood through the application of mechanical work.

Raising an object increases its potential energy due to its elevated position relative to the ground. This potential energy can then be converted into kinetic energy as the object falls, enabling it to do work.