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They are powered by electricity of course, but the generate microwaves (an electromagnetic wave, like light - but of a higher frequency). We are surrounded by microwaves from the sun, satalites, and radiation from electrical dewvices, but microwaves concentrate the energy - heat happens where "beams" cross and excite the molecules of what they are passing through (i.e. heat).
What else can I help you with?
What items use heat energy.?
Cooking uses heat energy as the main source. It is the main activity that uses heat as a source of energy.
Does a microwave have chemical energy?
If you are referring to the oven, the answer could be yes, as the turn table moves. However if you are referring to the electromagnetic wave known as a microwave then this is a form of electromagnetic energy...
What would happen if crude oil ran out?
The we (i.e., mankind) would have to use some other source of energy.The we (i.e., mankind) would have to use some other source of energy.The we (i.e., mankind) would have to use some other source of energy.The we (i.e., mankind) would have to use some other source of energy.
What is meant by a renewable source of energy?
Renewable source of energy means that this source is not exhaustible by its use in producing electricity or heat (steam) or mechanical energy. An example is solar energy. Using sunlight to produce electricity through special devices, called photoelectric cells, will not exhaust sunlight coming to earth. Fossil fuels like oil, gas, and coal are examples of nonrenewable sources of energy as they are exhausted by their use.
Can you use ever-silver utensils in microwave oven?
No metal object should be used in a microwave.
Is a microwave a source of heat energy?
Yes, a microwave is a source of heat energy. It heats food by using microwave radiation to agitate water molecules within the food, causing them to vibrate and generate heat.
What energy powers a microwave?
A microwave oven uses the 120 V AC coming out of your kitchen receptacle (in the United States) and by means of a transformer and rectifier converted to 7000 V DC which is then used to energize the magnetron that creates the microwave energy.
Is the Panasonic Energy Star approved?
No, this microwave is not energy star approved. In fact, Energy Star does not currently approve/label ANY microwave ovens. However, most microwave ovens of the same size/wattage use comparable amounts of energy, and microwave ovens use substantially less energy than conventional ovens.
Does a microwave use machanical energy?
because It moves
Is there a light inside of the microwave when it is not in use?
No, when it is not in use, the microwave would not have a light on. Why would you want the light on when you are not using it and waste energy?
Does a microwave use heat energy?
Yes, microwave uses heat energy. It helps in cooking.
What type of energy transformation takes place in a microwave?
In a microwave, electrical energy from the power source is converted into electromagnetic waves (microwaves) which in turn generate heat energy by causing water molecules in food to vibrate and produce heat. So, the energy transformation in a microwave involves conversion from electrical energy to electromagnetic waves and then to heat energy.
Why does a microwave use less energy than a conventional oven?
Microwave takes less time to cook
What is the only energy source that the brain can use?
Glucose is the only energy source that the brain can use.
What do cell use as a source of energy and for source of energy storage?
Carbohydrates
What kind of energy does a microwave oven use?
A microwave oven uses electricity to generate electromagnetic radiation in the microwave frequency range. This radiation is absorbed by water, fats, and sugars in food, causing them to vibrate and generate heat, which cooks the food.
What gives out the microwave?
Microwaves use radiant energy, so they give off radiant energy.
