暑假里我的小自行车一直停在小区露天停车场,结果连续几日高温后居然爆胎了,这是什么原因?A:我们知道物体有热胀冷缩的特点,对于大多数物体来说,温度越高,物体内部分子活动就越活跃,分子与分子之间的相互约束力就相对减弱,导致分子之间的平均距离增大,此时物体就会有膨胀的效果;相反,当温度下降时,分子活动减弱,分子间平均距离减小,物体会产生收缩的效果。夏天,烈日炎炎,暴露 My little bike in the summer vacation has been parked in the open-air parking area, the results for a few days after the flat tire actually high temperatures, what is the reason? A: We know that objects have the characteristics of thermal expansion and contraction, for most objects, The higher the temperature, the more active the molecular activity within the object, the relative binding between molecules and molecules is relatively weak, resulting in the average distance between molecules increases, the object will have an expansion effect; the contrary, when the temperature drops When the molecular activity weakened, the average distance between molecules decreases, the object will produce the effect of contraction. Summer, hot sun, exposure