Using Energy 1. You use energy for cooking and heating

When we use energy for cooking and heating, this typically involves converting some form of energy into thermal energy (heat).

For cooking, this might involve several different energy sources:

1. Electricity: If you use an electric stove, the electrical energy is converted into heat energy directly through resistive heating elements or via magnetic induction if you have an induction stove.

2. Gas: Gas stoves use natural gas or propane. The gas is combusted (burned), and the chemical potential energy stored in the gas is released as heat, which is then used to cook food.

3. Wood or Biomass: In some parts of the world, cooking is done on open fires or stoves that are fueled by wood, dung, or other biomass. These materials undergo combustion when burned, releasing heat energy that is used in cooking.

For heating, similar energy conversions take place:

1. Electricity: Electric heaters convert electrical energy into heat energy through resistive heating elements. In some cases, heat pumps may be used, which move heat from outside to inside a home.

2. Gas or Oil: Furnaces that burn natural gas, heating oil, or propane are common in many homes. The combustion of these fuels produces heat, which is then distributed throughout the home, often through a system of ducts and vents.