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气球摩擦头发可以飞上墙吗

更新时间: 2020-11-11 00:00:00     

吹起来的气球,通过摩擦带上了静电,也就是说,毛衣上的负电荷有一些转移到了气球上。天花板上有正电荷,把气球扔向天花板,它的负极与天花板的正极相吸引,气球能够飞向天花板,并停留在那儿,直到正负电荷平衡。因为天花板的导电性能差,在干燥的室内,气球能够在天花板上停几个小时才掉下来。

关键词: 气球 摩擦 头发 可以

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