我们乘坐游乐场过山车向下运动时,有一种心悬起来的感觉,感到很不舒服。这是什么原因造成的呢?这可以从物理和心理两方面来解释。从物理上讲,物体都有重量,人也不例外,物体的重量是由地球的引力所产生的,我们叫它“实重”。我们可以在物体静止时称出它的重量,这个重量,我们叫它“视重”。在物体静止状态中,它的“视重” When we ride the playground roller coaster down, there is a feeling of heart hanging, I feel very uncomfortable. What causes this? This can be explained both physically and psychologically. Physically speaking, objects have weight, and people are no exception. The weight of an object is created by the earth's gravity. We call it “real weight.” We can weigh the weight of the object when it is stationary, and we call it Weight. In the stationary state of the object, its “apparent weight”