how does a microwave oven work?

Answer 1

Your kidding right?

Answer 2

A microwave oven consists of:
1) magnetron
2) magnetron control circuit
3) waveguide
4) cooking chamber
A microwave oven works by passing microwave radiation, usually at a frequency of 2.5 GHz through the food.Substances in the food absorb energy from the microwaves in a process called dielectric heating. Many food molecules are electric dipoles, meaning that they have a positive charge at one end and a negative charge at the other, and therefore rotate as they try to align themselves with the alternating electric field induced by the microwaves. This molecular movement creates heat as the rotating molecules hit other molecules and put them into motion.

Microwaves are absorbed in the outer layers of food in a manner somewhat similar to heat from other methods. The depth of penetration of microwaves is dependent on food composition and the frequency, with lower microwave frequencies penetrating better.

PS: Magnetron is a high power vaccum tube that generates coherant microwaves
Waveguides are structures that guides the waves

Answer 3

It is a radio transmitter inside if a sheilded cage that transmitts around 1000 watts of radio energy into the cage at a frequency of 2,450,000,000 cycles per second. This happens to be the frequency that water molecules vibrate at, so they absorb the energy and convert the mechanical energy of their vibrations into heat energy. This is why things can heat very unevenly in a microwave, because the water is not uniformly distributed in the food, particularly if it is frozen. This frequency is most effective on liquid water.

Answer 4

in a microwave a fixed, or rotating antenna emits high ammounts of microwave radiation (like light but at some other frequency).
This radiation causes water molecules in the food to heat up very fast.
This radiation is harmful if directly exposed to it.

Answer 5

When microwaves pass through food, which is composed of organic molecules and organic bonds, these bonds will absorb energy and vibrate faster, causing the food to heat up.

Answer 6

my chemestry teacher said when she was young microwaves were thousands of dallors.

I'm not sure if that helps you.

The name microwave oven isn't a very good name for it. If I invented it I would have called it "The Molacule Freaker Outer"

I'm not sure if that helps either.