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Convection in a Kettle
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Transcript
The Hot Kettle
Convection in a hot kettle
What is Convection
Convection is the movement of heat in liquids and gases. The particles in liquids and gases are not tightly packed together and so free to move around. When the particles in a liquid or gas with a lot of heat energy move to take the place of the particles with less heat energy convection is said to take place and the heat energy is transferred from the hot areas to the cold areas
Hot Kettle
Convection in a Kettle
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The element at the bottom of the kettle heats the water that's close to it. This water rises (warm water is lighter than cold), and is replaced by cold water. The cold water gets heated, and the cycle repeats itself until the water's temperature triggers the kettles thermostat to switch it off
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