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物理原来这么有趣

作者：李妍

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人类的生活离不开大自然，自然界种种神奇现象的背后都可规律可寻。比如，声音有频率大小之分，超过某个频率段就是人类感到厌烦的噪音了；物质有液态、气态和固态三种形态，它们之间可以互相转换；太阳光能一分为七，由原来的白光变成赤橙红绿青蓝紫的七色光；一种叫作力的作用无处不在，走路时、游泳时，它都相伴左右；另外还有电、热、能量转换等现象，带给小读者眼前一亮的感受。这就是物理世界，作者通过深入浅出、通俗晓畅的语言，向小读者介绍了物质最一般的运动规律和基本结构，引领小读者走进物理学的大门。

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