比较几个物体在液体中所受到的浮力的大小,并不用到复杂的计算,只需用阿基米德原理和物体的浮沉条件(物体所受浮力和重力的关系)．在不同的情景中,比较的角度也不同．例1 将形状、体积相同的四个球分别浸在煤油和水中,图1为各物体静止时的情况．由图可知,这四个物体中受到浮力最小的是 Comparing the size of the buoyancy of several objects in a liquid does not require complex calculations. Instead, use the Archimedes principle and the floatation condition of the object (the relationship between the buoyancy and gravity of the object). In different scenarios, the angle of comparison is also different. Example 1 The four balls with the same shape and volume were immersed in kerosene and water, respectively. Figure 1 shows the situation when each object is stationary. As can be seen from the figure, the smallest buoyancy in these four objects is