The conservation of energy

The conservation of energy is a fundamental principle stating that energy cannot be created or destroyed, only transformed from one form to another. For example, when you lift a book, you use energy to raise it, storing it as potential energy. When the book falls, that stored energy converts into kinetic energy (motion). Throughout any process, the total amount of energy remains constant. This principle helps us understand natural phenomena and ensures that energy inputs and outputs balance out in closed systems, providing a reliable way to analyze and predict physical behaviors.