- A joule is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of its motion through a distance of one metre(1 newton/metre or N⋅m).
- It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second.
- Where symbol kg is a kilogram, m is a metre, s is a second, N is a newton, Pa is a pascal, W is a watt, and V is the volt, then the symbol J is for joule.
|Electronvolt prefixes||Abbreviation||eV to joules|
|millielectronvolt||meV||1 eV = 0.001|
|electronvolt||eV||1 eV = 1 eV|
|kiloelectronvolt||keV||1x keV =1,000 eV|
|megaelectronvolt||MeV||1x MeV = 1,000,000|
|gigaelectronvolt||GeV||1x GeV = 1,000,000,000||1x GeV = 0.00000016021773|
|teraelectronvolt||TeV||1x TeV = 1,000,000,000,000||1x TeV = 1.6021773e-7|
|petaelectronvolt||PeV||1x PeV = 1,000,000,000,000,000||1x PeV = 0.00016021773|
|exaelectronvolt||EeV||1x EeV =1,000,000,000,000,000,000||1x EeV = 0.16021773|