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# Energy units/what units is energy measured in

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Energy units/what units is energy measured in

## Joule

The Joule is the most widely used unit of energy in the world, and it is the basic unit of energy in the International System of Units (SI) and is symbolized by the symbol (J). This means that 1 joule = newton m.

## British Thermal Unit BTU

British Thermal Unit (Btu) The unit of energy most commonly used in heating. It is one of the units of energy in the British System of Units. It is defined as the energy required to heat 1 pound of water to one degree Fahrenheit, and one thermal unit is equal to 1055.05 joules.

## Calories

Calorie and its symbol (cal) is the amount of energy needed to raise one gram of water to only one degree Celsius under standard atmospheric pressure. Calorie units are usually used to express the energy produced by specific quantities of food, and one calorie is equal to 4.1840 joules.

## Electron volt

The electron volt (eV) is a very small unit of energy. It expresses the energy gained by an electron when moving from a low-energy orbit to a high-energy orbit. One electron volt is equal to 1.60 × 10−19 joules.

## TNT equivalent TNT

A unit of TNT equivalent is used to estimate the energy produced by explosions, which is a very large unit of energy, also called a kiloton (Kilotons), and TNT is a highly explosive substance, resulting in an explosion of 1 gram. It has an energy of 4000 joules, which means that 1 TNT equivalent is equal to the energy produced by the explosion of 1000 kg of TNT, and this means that 1 TNT equivalent = 4 x 1012 joules.

## kilowatt unit. hour

The unit kilowatt can be defined. An hour (Kilowatt-hour) and its symbol (kWh), which is defined as the energy consumed from an electrical capacity of 1 kilowatt during one hour, meaning that if an electrical device with an electrical capacity of 1 kilowatt is operated for a whole hour, it will consume electrical energy of a kilo A watt-hour is equal to a unit kilowatt. Hour 3.6 x 106 joules.

## Foot-pound unit

The foot-pound force (ft.lbf) is one of the units of measurement of energy in the British system of units, and it can be defined as the energy resulting from the effect of a force of 1 pound on an object and moving it a distance of one foot, equal to a unit of feet A pound is 1.356 joules.

## Conclusion

There are many units of measurement used to measure and determine energy values, and the units usually differ according to the different uses and applications for which energy is to be calculated or according to the system of units used. Energy).

The British Thermal Unit (BTU) is famous in energy applications in the fields of air conditioning and refrigeration, and the calorie unit (cal) is the most popular in calculating the energy contained in food and drink when consumed, and the kilowatt-hour unit is the most popular in calculating the energy consumed by electrical appliances The TNT equivalent unit is used to estimate the force of the explosions.

Energy units/what units is energy measured in