在解浮力题时,同学们对那些过程复杂,浮沉情况不明朗的题目颇感头疼,一般采用穷举法来求解。但是这种方法费时费力。下面笔者介绍一种较为简洁的假设修正法。1同物异液凑密度小的例1将一实心物体先后投入足量水和酒精中,物体静止时,所受浮力分别为6N和5N,判定物体在水和酒精中 In solving the buoyancy question, the students felt a headache for the complicated and unclear subject matter of the process, and generally used the exhaustive method to solve it. However, this method is time-consuming and laborious. The following author introduces a relatively simple assumption correction method. 1 Example 1 in which the heteropore density is small Example 1 A solid object is put into a sufficient amount of water and alcohol successively. When the object is stationary, the buoyancy is 6N and 5N, and the object is determined to be in water and alcohol.