In terms of SI base units and in terms of SI derived units with special names, the joule is defined as
One joule is also equivalent to any of the following:
• The … See more

The cgs system had been declared official in 1881, at the first International Electrical Congress. The erg was adopted as its unit of energy in 1882. Wilhelm Siemens, in his inauguration … See more

Zeptojoule 160 zeptojoule is about one electronvolt. The minimal energy needed to change a bit of data in computation at around room temperature – approximately 2.75 zJ – is given … See more

In mechanics, the concept of force (in some direction) has a close analogue in the concept of torque (about some angle):
A result of this similarity is that the SI unit for torque is the See more

One joule represents (approximately):
• The amount of electricity required to run a 1 W device for 1 s.
• The energy required to accelerate a 1 kg mass at 1 See more

1 joule is equal to (approximately unless otherwise stated):
• 10 erg (exactly)
• 6.24150974×10 eV
• See more

A watt-second (symbol W s or W⋅s) is a derived unit of energy equivalent to the joule. The watt-second is the energy equivalent to the power of one watt sustained for one See more