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温度,表示物体的冷热程度。温度高就表示热,温度低就表示冷。两个物体温度一样,就表示它们的冷热程度一样。对于同为0℃的冰和水来说,虽然我们感觉冰比水冷,但是如果用温度计测量的话,示数是一样的,都是0℃。之所以觉得0℃的冰比0℃的水冷,是因为0℃的冰接触人手时要吸热融化,融化后仍然是0℃的水,这样就比0℃的冷水多了一个融化吸热的过程,所以我们摸上去会觉得冷。温度这个物理量,对生物的意义非常重大。
Temperature, said the degree of hot and cold objects. High temperature means heat, low temperature means cold. The same temperature of two objects, they said the same degree of hot and cold. For the same 0 ° C ice and water, although we feel ice is cooler than water, the number is the same if measured with a thermometer, both at 0 ° C. The reason why 0 ℃ ice than water 0 ℃, because 0 ℃ ice contact with human hand to endothermic melting, melting is still 0 ℃ water, so that more than 0 ℃ of cold water to melt a endothermic Process, so we feel cold will feel. The physical quantity of temperature, the significance of biological is very significant.