BIT OF ENERGY is a term used to describe a small amount of energy, usually measured in units such as the ERG and JOULE. An ERG is a unit of energy equal to the work done by a force of one dyne acting over a distance of one centimeter. A JOULE is a unit of energy equal to the work done when a force of one newton is applied over a distance of one meter. Both units are commonly used to measure energy in scientific contexts.