Iron at 30oC feels colder to the hand than wood at 28oC because
Question 1 Report
Iron at 30oC feels colder to the hand than wood at 28oC because
Answer Details
The correct answer is "iron conducts heat more quickly from the hand than wood."
The sensation of temperature is related to heat flow, which is the transfer of thermal energy from one object to another due to a temperature difference. When we touch an object, heat flows from our hand to the object if the object is cooler than our hand, or from the object to our hand if it is warmer.
In this case, the iron feels colder to the hand than wood because it conducts heat more quickly from the hand than wood. Iron is a good conductor of heat, whereas wood is a poor conductor. Therefore, when we touch a piece of iron and a piece of wood at the same temperature, more heat flows from our hand to the iron, making it feel colder, while less heat flows to the wood, making it feel warmer.
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