Category: Energy

Energy is a fundamental concept in physics that refers to the capacity to do work or produce change. It exists in various forms, including kinetic energy (energy of motion), potential energy (stored energy based on position), thermal energy (related to temperature and heat), chemical energy (stored in the bonds of chemical compounds), and nuclear energy (released during nuclear reactions). Energy can neither be created nor destroyed, only transformed from one form to another, as stated in the law of conservation of energy. It is measured in joules (J) in the International System of Units (SI). Energy plays a crucial role in all physical processes and is essential for powering everything from simple machines to complex biological systems and entire economies. In more practical terms, energy is what makes things happen and is a key factor in the functioning of the universe, impacting climate, technology, and daily life.