Although the wood and the metal are at room temperature, your fingers are warmer. Consequently, heat flows outward from your fingers to the cooler surface. The wood promptly heats to a final temperature, and its thermal conductivity is so low that little additional heat leaves your fingers. On the other hand, the metal continues to draw heat from your fingers as it is conducted away, and the departing heat is interpreted by your brain as cool.
2007-09-29 09:44:31
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answer #1
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answered by anobium625 6
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in case of metals the heat flows from ur body to the metal wheras in case of wod it is oppo.it is basically due to conduction currents. the metals are good acceptors as well as radiators due to the charge carriers. therefore when you touch a metal you can easily sense the temp. of the metal as compared to the sourroundings, where as the wood does not have good conduction so it is difficult to sense the temp. of wood. but you an compare the two metals as stated below
"Copper conducts heat better than aluminum, but it does not have the ability to release the heat as quickly as aluminum. To give you an example, if we had equal size and shape sections of each and put a flame under one end of them, the copper would get hot on the other end first. Now say we put out that flame and waited to see which one would cool off first. The aluminum would get cooler faster than the copper."
2007-09-29 10:07:40
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answer #2
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answered by confusion 1
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'Cold' and 'hot' are physiological terms describing the direction of heat energy flow through your skin. Metal conducts heat much better than wood and so more of your body heat flows out into it.
Doug
2007-09-29 09:41:46
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answer #3
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answered by doug_donaghue 7
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wood is insulator whereas metal is the conductor .thats why wood is not as much cool as metal.
2007-09-30 00:58:19
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answer #4
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answered by jo 1
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this is because metal is good conductor of heat and wood is bad conductor of heat.
2007-09-29 10:07:25
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answer #5
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answered by kislay s 1
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