Energy - of any type - is measured in Joules.
Work and energy use the same units; but the term "work" is used in the sense of "transfer of energy" (amount of energy transferred).
Its the exact amount without loosing any in the process. This process is called "The Law of Conservation of Energy".
Joules are used to measure energy. Also the related concept of work, which can be thought of as the transfer of energy.
Work IS a kind of energy: work is the word used for transfer of energy.Work IS a kind of energy: work is the word used for transfer of energy.Work IS a kind of energy: work is the word used for transfer of energy.Work IS a kind of energy: work is the word used for transfer of energy.
The same units can be used for any type of energy - and in modern science, the same units ARE used. For example, the SI unit for energy is the joule.
If 20 units are used for light and 30 units are used for sound, then a total of 50 units are used for those two purposes. This means 50 units are left to be converted into heat. So, the number of units of electric energy converted into heat is 50.
50 units
The total energy input is 100 units. If 20 units are used for light energy and 30 units for sound energy, then the remaining energy would be 100 - 20 - 30 = 50 units. Based on the principle of conservation of energy, this remaining energy would likely be converted mainly into heat energy.
The symbol used to show a transfer of energy is an arrow pointing from the energy source to the recipient of the energy. It typically represents the direction of the energy flow between the two entities.
The units for energy are joules (J) in the International System of Units (SI).
Energy - of any type - is measured in Joules.
Heat is also a type of energy, so energy units would be used in both cases. The standard (i.e., international) unit for all sorts of energy is the joule.