energiasäilivuse
Energiasäilivuse, often translated as energy conservation, is a fundamental principle in physics stating that the total energy of an isolated system remains constant over time. This means energy cannot be created or destroyed, only transformed from one form to another. For example, a falling object converts potential energy into kinetic energy. Similarly, in a closed electrical circuit, electrical energy is converted into light and heat.
The law of conservation of energy applies to all known forms of energy, including kinetic, potential, thermal,
The concept has evolved over time. Initially, it was understood in terms of mechanical energy. Later, with