A sponge cake is cooked by the heat transfer method of convection.
It depends on the type of baking you are doing.
microwave, oven types, stover types are all different.
The infrared heat is transferred to the food by radiation.
Its radiation
Radiation
Roasting and baking are both methods of cooking where the food is surrounded by heat on all sides. Roasting is usually at a higher temperature than baking. Broiling and grilling are both methods where the heat comes from only one side. When broiling the heat comes from above the food, grilling it comes from below.
Carryover baking continues to cook a baking product after you take it out of the oven because of the continuous heat being radiated from the food.
Heat is directly transferred, like a frying pan.
the heat is transferred by direct contact of particles of matter
energy is lost through heat excretion and movement
Heat is transferred through contact between molecules.
Heat transferred in convection occurs through movements of fluids.
Heat is transferred by convection and by radiation in a conventional gas oven. In an electric oven heat is transferred by radiation only. In a microwave oven, radar waves bombard the molecules within food, bouncing them around enough that the friction produced causes heat to build up within the food.
The baking powder makes any food you bake rise. How much it rises depends on how much powder you put in and how hot your oven is when you put the food in. For best results a sudden burst of heat is needed.