KIDS QUIZ
SPACE AND THE SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A hair dryer is drying up your hair.
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When the AC or heater changes the temperature.
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When a car engine turns hot after being turned on.
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When you are making soup and the water is rising and lowering.
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Detailed explanation-1: -Sea breeze and land breeze are examples of heat transfer by convection.
Detailed explanation-2: -Convection is the mode of heat transfer in fluids, i.e., liquids and gases. Water gets heated in spite of being a poor conductor of heat due to convection. Water at the bottom of the pot gets heated when put on a flame. Hot water being lighter moves up and cold water moves down.
Detailed explanation-3: -Stirring a pot of soup would be considered a form of convection, as it redistributes the heat from the bottom of a pot throughout the soup. Convection is also the reason that frozen items thaw more quickly under cold running water than if they are simply submerged in water.
Detailed explanation-4: -Convection Examples of how heat transfer via convection works: Water coming to a boil and circulating in the pot Running cold water over frozen food, which transfers heat into the food to thaw it more quickly Room temperature air moving around frozen food to thaw it.