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Energy is a central concept in physics, defined as the capacity to perform work and drive physical changes within a system. As outlined in the notes of P. Hsu (2007), energy manifests in various forms, such as kinetic, potential, thermal, and mechanical energy, and is transferred between system components during processes. This fundamental entity is essential for understanding the interactions and transformations withinphysical systems. A thorough grasp of energy lays the groundwork for numerous applications in science and technology.
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