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).
We generally measure the energy available in the food with the unit calorie. The calories the food have is the energy available in the food to be released by the chemical oxidation in your body. The calorie is an energy unit that can be converted into other energy units such as btu.