Which of the following statements best describes how a convection current causes smoke to rise out of chimney A but sink through chimney B?The candle heats the air particles around it and they expand. The means the air particles become less dense and rise out of chimney A. Cooler, more dense air particles are then sucked into chimney B in a convection current.The candle heats the air particles around it and they contract. The means the air particles become more dense and rise out of chimney A. Cooler, less dense air particles are then sucked into chimney B in a convection current.The candle heats the air around it, which expands, becomes less dense and rises out of chimney A. Cooler, more dense air is sucked into chimney B in a convection current.The candle heats the air around it, which contracts, becomes less dense and rises out of chimney A. Cooler, more dense air is sucked into chimney B in a convection current.
Question
Which of the following statements best describes how a convection current causes smoke to rise out of chimney A but sink through chimney B?The candle heats the air particles around it and they expand. The means the air particles become less dense and rise out of chimney A. Cooler, more dense air particles are then sucked into chimney B in a convection current.The candle heats the air particles around it and they contract. The means the air particles become more dense and rise out of chimney A. Cooler, less dense air particles are then sucked into chimney B in a convection current.The candle heats the air around it, which expands, becomes less dense and rises out of chimney A. Cooler, more dense air is sucked into chimney B in a convection current.The candle heats the air around it, which contracts, becomes less dense and rises out of chimney A. Cooler, more dense air is sucked into chimney B in a convection current.
Solution
The statement that best describes how a convection current causes smoke to rise out of chimney A but sink through chimney B is: "The candle heats the air around it, which expands, becomes less dense and rises out of chimney A. Cooler, more dense air is sucked into chimney B in a convection current."
Here's why:
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The candle heats the air around it: The heat from the candle causes the air particles in its immediate vicinity to gain energy and move faster.
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The heated air expands and becomes less dense: As the air particles move faster, they spread out or expand. This expansion causes the air to become less dense (i.e., there are fewer air particles in a given volume).
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The less dense air rises out of chimney A: Because the heated, less dense air is lighter than the surrounding cooler air, it rises up and out of chimney A.
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Cooler, more dense air is sucked into chimney B: As the heated air rises out of chimney A, it creates a low-pressure area. The surrounding cooler, denser air rushes in to fill this low-pressure area, creating a convection current. This cooler air is then sucked into chimney B.
Similar Questions
A convection current will be produced by the experiment in the diagram below.Correctly order the steps explaining how the convection current occurs.Step 1:Step 2:Step 3:Step 4:Possible AnswersThe candle heats the air around it.The air expands, making it less dense.The less dense air rises out of chimney A.Cooler more dense air replaces this air through chimney B.I DON'T KNOWRESETSUBMIT ANSWER
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