A Complete Collection of 100000 Whys
Fav十万个为什么
为什么重力会作用物体？
1、重力是地球或其他天体对物体的吸引力，这种力源于物体之间的质量相互作用。
2、根据牛顿的万有引力定律，任何两个物体都会相互吸引，吸引力的大小与两个物体的质量成正比，与它们之间的距离的平方成反比。
3、重力使物体向地面落下，例如苹果从树上掉下来，是因为地球对苹果的重力作用。
4、重力不仅影响固体，也影响液体和气体，例如水往低处流，大气层被地球吸引住。
5、重力是宇宙中普遍存在的力，它使行星围绕恒星旋转，使恒星聚集形成星系。
总之，重力是物体之间由于质量而产生的相互吸引力，它解释了为什么物体会下落、行星会围绕恒星旋转等现象，是自然界中一种基本而重要的力。
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