EVERYDAY SCIENCE

Detailed explanation-1: -The amount of thermal energy contained inside a body is the internal kinetic energy possessed by a body. It has the unit joule (J) in the International System of Units (SI).

Detailed explanation-2: -One joule measures the energy released by a electric charge of one coulomb dropping one volt in absolute value of electrical potential. The amount of energy delivered by a one watt source of power in one second is one Joule. The joule is also used to measure thermal energy.

Detailed explanation-3: -The joule (/ˈdʒuːl/ JEWEL, /ˈdʒaʊl/ JOWL; symbol: J) is the unit of energy in the International System of Units (SI).