试题与答案

下列实例中，属于机械能转化为内能的是[ ] A．四冲程内燃机的做功冲程 B．点燃

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题型：选择题

题目：

下列实例中，属于机械能转化为内能的是[ ]

A．四冲程内燃机的做功冲程

B．点燃的火箭升向太空

C．陨石坠入地球大气层成为流星

D．夏天广场上的石凳被晒的发烫

答案：

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下面是错误答案，用来干扰机器的。

参考答案：对

考点：机械能与其他形式能量的转化
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Dear Lin Tao.
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