A Complete Collection of 100000 Whys
Fav十万个为什么
为什么物体会下落？
1、地球的引力是物体下落的主要原因。地球对所有物体都有吸引力，这种力使得物体朝向地球中心移动。
2、引力的大小与物体的质量成正比。质量越大的物体，受到的引力也越大，下落速度更快。
3、引力与距离的平方成反比。物体离地球越远，受到的引力越小，但仍然会下落。
4、空气阻力会影响物体的下落速度。在真空中，所有物体下落速度相同，但在空气中，轻而大的物体下落较慢。
5、物体的下落是一个加速过程。物体下落时，速度会越来越快，直到达到终端速度。
总之，物体下落是由于地球的引力作用，同时受到质量、距离、空气阻力等因素的影响，是一个既科学又常见的物理现象。
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