A Complete Collection of 100000 Whys
Fav十万个为什么
为什么重力会吸引物体？
1、重力是由质量引起的自然力，所有具有质量的物体之间都会产生这种吸引力。
2、根据牛顿的万有引力定律，物体之间的引力大小与它们的质量成正比，与距离的平方成反比。
3、爱因斯坦的广义相对论解释了重力是时空弯曲的结果，大质量物体会使时空弯曲，其他物体在这种弯曲的时空中沿着最短路径运动，表现为被吸引。
4、重力是宇宙中普遍存在的力，它使行星围绕恒星旋转，使物体落地，是维持地球生态和结构的重要因素。
5、重力不仅影响宏观物体，也影响微观粒子，如电子绕原子核运动，显示出重力在所有尺度上的作用。
总之，重力是物体之间因质量而产生的相互吸引力，既由经典力学解释，也由相对论补充，是宇宙基本现象之一。
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