The term 'Tiny Unit of Work' can be summarized as a three-letter word, 'ERG'. An ERG is a unit of energy or work equal to the work done by a force of one dyne acting over a distance of one centimeter. It is used in the field of physics to measure energy and work. In other fields, such as engineering, ergonomics, and biomechanics, it is used to measure the amount of work done by a person or machine.