Nuclear fission mass which= m.(light seed )2. on consideration for 1lb.
You burn them in some type of engine to extract their energy.
A fuel is one type of energy source. Fuels usually work by buning in air to produce heat, which then does further work in a turbine or other form of heat engine. When a carbon fuel is burned, the mass of oxygen taken from the air exceeds the mass of fule that has to be stored and/or carried, so using fuel is very attractive, and efficient in terms of mass and volume.
both electric and magnetic energy
Stored energy
Hydro energy
The kinetic type does.
Chemical Energy.
Wind isn't considered a type of fuel at all. Wind is a renewable energy source though.
Fuel oil has chemical energy; chemical energy is a type of potential energy.
combustion energy
That is called chemical energy - assuming conventional fuel. Nuclear fuel has nuclear energy.
If there is fuel in the tank then it has chemical energy in that fuel. If it is moving it has kinetic energy. If it is at the top of a hill then it has gravitational potential energy.
potential
A green fuel is an energy type for cars. A green fuel is an energy type for cars.
Renewable energy
The energy that is contained in a consumable fuel (like gasoline) is chemical energy. The energy that it is converted into when it is burned is heat energy.
Fatty and sugary foodstuffs have the highest energy content per weight unit.