+**Energy Loss** is the irreversible transformation of useful energy into forms less capable of doing work, often dissipated as [Heat](/wiki/heat) or [Sound](/wiki/sound). It is a fundamental concept across physics and engineering, illustrating the inherent inefficiency in many natural and artificial processes where [Work](/wiki/work) is performed.
+## See also
+- [Thermodynamics](/wiki/thermodynamics)
+- [Entropy](/wiki/entropy)
+- [Efficiency](/wiki/efficiency)
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