Heat and Thermodynamics - SS2 Physics Past Questions and Answers - page 1
Which heat transfer mechanism does not require a medium to transfer heat?
Conduction
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Convection
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Radiation
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None of the above
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Heat transfer by conduction occurs primarily in which of the following?
Solids
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Liquids
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Gases
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All of the above
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Which heat transfer mechanism involves the transfer of heat through the movement of fluids?
Conduction
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Convection
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Radiation
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None of the above
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Which of the following is an example of heat transfer by radiation?
Touching a hot object
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Heating water on a stove
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Feeling the warmth of the sun
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Stirring a pot of soup
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Which heat transfer mechanism is responsible for the heating of the Earth's atmosphere?
Conduction
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Convection
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Radiation
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Both B) and C)
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Which material is a good conductor of heat?
Wood
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Plastic
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Metal
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Rubber
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Which heat transfer mechanism is primarily responsible for heat loss in a vacuum flask?
Conduction
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Convection
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Radiation
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All of the above
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Which of the following is an example of heat transfer by convection?
Putting a metal spoon in hot soup
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Holding your hand near a fireplace
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Standing in front of an open oven
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None of the above
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Which heat transfer mechanism is most efficient in a solid material?
Conduction
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Convection
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Radiation
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They are equally efficient
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Which heat transfer mechanism is responsible for the cooling effect of a fan?
Conduction
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Convection
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Radiation
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Both A) and C)
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