Pronounced "jewel," a joule is equal to 10 million ergs in the CGS (centimeter-gram-second) system. Surge protectors are often given joule ratings, but this refers only to the amount of energy ...
A dyne is the unit of force required to accelerate one gram by one centimeter per second squared. An erg is a unit of energy, which is equal to .0000001 joule in the MKS system. Contrast with MKS ...