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When water in a teapot is heated, the molecules near the heat source become energized and move more rapidly. These hot molecules rise to the top of the teapot, displacing cooler water, which then moves towards the heat source to be heated. This circular motion of hot water rising and cool water sinking is known as convection, helping to evenly heat the water in the teapot.
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Is a boiling teapot convection?
A boiling teapot is an example of convection. As the water inside the teapot heats up, it becomes less dense and rises to the top, while cooler water from the top moves down to replace it. This creates a convection current that helps distribute heat evenly throughout the teapot.
Which can transfer more heat 1 cup or boiling water or 1 teapot of boling water?
One teapot of boiling water can transfer more heat than one cup of boiling water because the teapot has a larger volume and surface area for heat transfer. The greater quantity of boiling water in the teapot allows for more heat to be transferred compared to the smaller amount in a single cup.
Why does boiling water spin objects?
Boiling water creates convection currents, where hot water rises and cooler water sinks. When you place an object in the boiling water, the convection currents cause the object to spin as the water moves around it.
How is energy transferred from a cup of boiling water?
Energy is transferred from a cup of boiling water through convection, conduction, and radiation. Convection causes the hot water at the bottom to rise, transferring heat to the cooler water at the top. Conduction transfers heat from the water to the cup, and radiation emits heat in the form of infrared waves.
Is boiling water in a kettle convection?
Yes, boiling water in a kettle involves the process of convection. As the water is heated, it becomes less dense and rises to the top, while cooler water from the top flows down to replace it. This circulation of water is an example of convection.
