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