Chemical energy.!!!... LOL science
energy food
Electrical and chemical
Chemical energy
You get actually energy (Watts) out of a battery, not calories (which is food energy).
it comes from the products of combustion of food. Food + oxygen becomes energy + Carbon dioxide
Food (chemical energy).
A battery Food Burning
We humans (as well as animals) get the energy we need from our food. This energy is stored in the food, in the form of chemical energy.
The energy needed for metabolism comes from the food you eat. That is why unhealthy food slows down the metabolism.
Think about a battery-powered motor. (Granted, the energy is originally chemical potential, but it is transferred to electrical potential when it comes out of the battery.)
Potential chemical energy is released as electrical energy when the external circuit is connected.
Chemical Energy