A paper windmill in a horizontal axis was placed above a candle as shown in Figure 2. When the candle was lit the paper windmill begun to rotate. Explain this observation

      

A paper windmill in a horizontal axis was placed above a candle as shown in Figure 2. When the candle was lit the paper windmill begun to rotate. Explain this observation
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Answers


John
The flame heats the air above it which becomes less dense and rises. The rising air creates convectional current that causes the blades to turn in a clockwise direction
johnmulu answered the question on April 17, 2017 at 07:52


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