Nebular Theory: This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula. If astronomers have observed protoplanetary disks around distant newborn stars, the Sun-to-be collected most of the mass in the nebula's center, forming a Protostar
The pole stores elastic potential energy when the pole is bent because its shape is change from its natural shape and it will want to go back to its original form, just like a spring or stretched elastic material.
