What physics knowledge is in the kitchen

Phenomena related to the knowledge of electricity.

1. Rice burger cooking, electric large section wok, electric kettle boiling water is the use of electric energy into internal energy, all of which use heat transfer to cook, cook, and boil water.

2. The exhaust fan (range hood) uses electrical energy to convert into mechanical energy, and uses air convection to transform air.

3. The three-pin plug of the rice cooker, electric wok, and electric kettle should be inserted into the three-hole socket to prevent the occurrence of electric leakage and electric shock accidents.

4. The microwave oven heats evenly, with high thermal efficiency, hygienic and pollution-free. The heating principle is to use electrical energy to convert electromagnetic energy, and then convert electromagnetic energy into internal energy.

5. The electric lamp in the kitchen uses the thermal effect of electric current to work and convert electrical energy into internal energy and light energy.

6. The kitchen stove (honeycomb coal stove, liquefied gas stove, coal stove, wood stove) converts chemical energy into internal energy, that is, fuel combustion releases heat.