Erg

"Erg" can refer to different concepts depending on the context. Here are a few common meanings: 1. **Unit of Energy**: In physics, an erg is a unit of energy in the centimeter-gram-second (CGS) system. It is defined as the amount of work done when a force of one dyne is applied over a distance of one centimeter. The erg is a relatively small unit of energy, and it is mostly used in scientific contexts.