试题与答案

关于物体的内能下列说法中正确的是( ) A.温度相同,质量相同的物体,内能必相同

题型:选择题

题目:

关于物体的内能下列说法中正确的是(  )

A.温度相同,质量相同的物体,内能必相同

B.物体的机械能增大时,内能也增大

C.晶体凝固时温度不变,内能也不变

D.500℃铁块放入20℃冷水中后,铁块的内能变小了

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错

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