How do microwave ovens cook food?

How do microwave ovens cook food?

You are late for school. Pop a toaster cake in the microwave, push some buttons, and within seconds you can have a fast and easy breakfast. Microwave ovens can heat food in seconds and cook meals in minutes. Inside the microwave is a special tube called a magnetron that changes electricity into high-frequency microwaves.

Microwaves are a form of electromagnetic energy. Microwaves cause water and food molecules to vibrate very quickly. This creates a friction that produces heat, which can cook or warm up food fast.

Why do people microwave sponges?

Heating a sponge in a microwave for two minutes can kill the bacteria that can settle on the sponge.

Why can't I use a metal container in a microwave?

Microwaves can heat the metal to the point where it can cause fire or produce harmful gases.

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