The term 'THERE ARE 10 MILLION IN A JOULE' can be summarized by the answer to the crossword clue 'ERGS' (4 letters). This is a reference to the fact that one joule is equal to 10 million ergs, which is a unit of energy. 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. Joules are the SI unit of energy and are used to measure the amount of work done or energy expended.