What is the unit of work?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The SI unit of work is the joule (J), named after physicist James Prescott Joule. One joule is defined as the work done when a force of one newton moves an object one meter in the direction of the force. Other units include:
- Erg (CGS system): 1 joule = 10⁷ ergs
- Foot-pound (Imperial system)
- Kilowatt-hour (kWh) for larger quantities
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