Energy

Energy is defined as the capacity or ability to do work or produce change. It exists in various forms, including kinetic (the energy of motion), potential (energy stored due to position), thermal (heat energy), chemical (energy stored in chemical bonds), electrical (energy due to electric charge), and nuclear (energy released during nuclear reactions). Energy can be converted from one form to another but cannot be created or destroyed, as stated by the law of conservation of energy. This principle is fundamental in physics and underlies many processes in nature and technology. In practical terms, energy powers everything from machines to living organisms and is vital for human activities, driving economies and shaping environments. Energy is measured in units such as joules, calories, and kilowatt-hours, and plays a critical role in scientific research, engineering, and everyday life.