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A Unit Of Energy is a measure of the capacity for work. All units should have their equivalent given in the SI base unit, joules.
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16 Unit Of Energy topics matching:
Filter this Collection| J | ||||
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| x name | x image | x Energy in Joules (J) | x Measurement System | x article |
| x Joule | 1 J | International System of Units |
The joule (symbol J), named for James Prescott Joule, is the derived unit of energy in the International System of Units. It is the energy exerted by a force of one newton acting to move an object through a distance of one metre. In terms of...
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| x Watt-hour |
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3,600 J |
The kilowatt hour, or kilowatt-hour, (symbol kW·h, kWh) is a unit of energy equal to 3,600,000 joules.
Energy in watt hours is the multiplication of power in watts and time in hours.
The most common use of the unit is when energy is delivered by...
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| x Calorie |
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4.184 J |
The calorie is a pre-SI metric unit of energy. The unit was first defined by Professor Nicolas Clément in 1824 as a unit of heat. This definition entered French and English dictionaries between 1841 and 1867. In most fields its use is archaic,...
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| x Kilowatt-hour | 3,600,000 J | |||
| x Erg | 0 J | Centimeter gram second system of units |
An erg is the unit of energy and mechanical work in the centimetre-gram-second (CGS) system of units, symbol "erg". Its name is derived from the Greek ergon meaning work .
An erg is the amount of work done by a force of one dyne exerted for a...
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| x Kilocalorie | 4,184 J |
The kilocalorie is the basic unit of nutritional energy; confusingly, this is what US food packaging calls a “Calorie.” European packaging uses the much clearer kcal abbreviation.
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| x Kilojoule | 1,000 J | International System of Units | ||
| x Hartree energy | 0 J | Atomic units |
A hartree (symbol Eh) is the atomic unit of energy and is named after physicist Douglas Hartree.
The hartree energy is equal to the absolute value of the electric potential energy of the hydrogen atom in its ground state. This is also almost exactly...
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| x Electronvolt |
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0 J | Non-SI units accepted for use with SI |
In physics, the electron volt (symbol eV; also written electronvolt according to the NIST, IUPAC, and BIPM) is a unit of energy. By definition, it is equal to the amount of kinetic energy gained by a single unbound electron when it accelerates...
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| x Ton of TNT | 4,184,000,000 J | |||
| x Kiloton of TNT | 4,184,000,000,000 J | |||
| x Megaton of TNT | 4,184,000,000,000,000 J | |||
| x Milliton of TNT | 4,184,000 J | |||
| x Microton of TNT | 4,184 J | |||
| x Megaelectronvolt | 0 J | Non-SI units accepted for use with SI | ||
| x British thermal unit | 1,055.056 J |
The British thermal unit (BTU or Btu) is a traditional unit of energy. It is approximately the amount of energy needed to heat one pound of water one degree Fahrenheit. One Btu is equal to about 1.06 kilojoules. It is used in the power, steam...
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