2006-12-07 06:01:33 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
The micro waves radiate the water molecules inside the food. As they move, they generate heat.
Rather than conventional ovens which just heat the food from the outside in, your microwave heats more from the inside out.
2006-12-07 06:03:51 · answer #1 · answered by Anonymous · 1⤊ 1⤋
If you look at the structure of a water molecule, it has a negative pole (a concentration of electrons) and a positive pole (a concentration of protons). When microwave energy is released, it causes these poles to follow the movement of the wave since the wave alternates between positive and negative. Think of a compass and what happens when you take a magnet and place it next to the compass. The needle spins based on what pole of the magnet is closest to the head of the arrow. This is what happens with the molecules.
This method "excites" the molecules a lot faster than just applying heat. The heat the water or other substance gives off is due to the energy that is released when the molecules move around each other. I hope you understand where I'm coming from.
2006-12-07 06:50:25 · answer #2 · answered by Hatty 2 · 1⤊ 0⤋
The Microwave oven uses a vacuum tube called "Magnetron" to produce microwaves (electromagnetic waves, no praticles) with exact frequency of 2140MHz.
These waves have the same frequency as the moving frequency of the water mollecules and they make the movement of the water mollecules more intensive. Because of that the water mollecules increase their kinetic energy and rapidly turn it into heat, which is spread across the food.
2006-12-07 06:13:39 · answer #3 · answered by Dimitar Hanrov 2 · 0⤊ 0⤋
Microwaves cook food from the inside out rapidly due to microwave particles zipping in the oven's chamber, causing friction on the food item inside. Mircowaves seek out moisture and concentrate on those moist areas and dry them out.
2006-12-07 06:10:22 · answer #4 · answered by Mr. Wizard 7 · 0⤊ 1⤋
Microwave is nothing but high frequency radiations. The frequency should be in GigaHerts. In Such a high frequency the cells inside the food moves randomly and collides with the other cells which generates heat.
2006-12-07 10:23:35 · answer #5 · answered by Anonymous · 0⤊ 1⤋
It absorbs the energy from the microwaves, thus warming up.
2006-12-07 06:02:26 · answer #6 · answered by fletchermse 2 · 0⤊ 0⤋
Friction from the superfast movement of the molecules.
2006-12-07 06:04:49 · answer #7 · answered by c.arsenault 5 · 0⤊ 1⤋