The law of conservation of energy states that energy cannot be created or destroyed; it can only change form. In physical systems, this means the total energy remains constant. For example, in a pendulum, potential energy at its highest point converts to kinetic energy as it swings, but the total energy stays the same, barring frictional losses.
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The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. In physical systems, this means that the total energy (kinetic, potential, thermal, etc.) within a closed system remains constant. For example, in a pendulum, potential energy at the highest point converts to kinetic energy as it moves, but the total energy remains the same throughout the swing, barring external forces like friction.
The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another within a physical system. In any process, such as mechanical work, heating, or chemical reactions, the total energy in the system remains constant, though it may change between forms like kinetic energy, potential energy, thermal energy, or chemical energy. For example, in a roller coaster, the potential energy at the highest point is converted into kinetic energy as the coaster moves down, but the total energy remains the same. This principle is fundamental in understanding and analyzing energy flow in physical systems, ensuring that energy is accounted for in all processes.