Potential energy is the stored energy an object possesses due to its position or condition. For example, a stretched rubber band has potential energy because it can snap back when released.
In physics, work is done when a force acts on an object to cause displacement. It is calculated as the product of force and distance moved in the direction of that force.
The principle stating that energy cannot be created or destroyed but can only be converted from one form to another. This means that the total amount of energy in a closed system remains constant over time.