Poinciana Elementary; Sabal Palm Elementary; Sea Gate Elementary; Shadowlawn Elementary; Tommie Barfield Elementary; Veterans Memorial Elementary; Village Oaks Elementary; Vineyards Elementary; Training Resources; Lorenzo Walker Technical College; Immokalee Technical College; Adult Education; Alternative School Programs; Community Education; CCPS Elementary Math
How Microwaves Cook Food. When you hit the start button it usually takes about 2 seconds to heat up a filament inside the magnetron tube, says Schiffmann. The microwaves are then blasted into the food compartment. The commonly used frequency of microwaves, 2.45 gigahertz, is easily absorbed by water, fat, and sugar.
A microwave oven, commonly referred to as a microwave, is a kitchen appliance that heats and cooks food by exposing it to electromagnetic radiation in the microwave spectrum.This induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating.eating from microwaves that have a wavelength that is small relative to the cavity (as in a modern microwave oven) is due to far-field effects that are due to classical electromagnetic radiation that describes freely propagating light and microwaves suitably far from their source.