The methods of standardization or calibration employed have much in common even in the cases that appear most diverse.
The joule (/ËdÊuËl/), symbol J, is a derived unit of energy in the International System of Units. It is equal to the energy transferred (or work done) to 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 NÂ·m).
In science, electrical energy is measured in joules. However, another unit of electrical energy, the kilowatt. hour (kW. h), is the amount of energy that is used by a load of exactly one kilowatt running for exactly one hour.he kilowatt.hour (kW.h). It is the amount of energy that is used by a load of exactly one kilowatt running for exactly one hour. The kW.h unit is used to measure the tota â¦ l amount of energy used in a building (a home, an office, a factory, etc.) over a particular period of time, usually one month or three months.