这个实验的主要是学习用斯托克斯定律测定液体的粘滞系数,进一步掌握测温、测时、巩固基本测量仪器的使用,实验并不困难,关键在于钢球在量筒中下落所经历的时间应当合适,下落太慢,费时太多,下落太快,经历的时间过短,则不易测准时间,会带来过大的误差。对于大小一定的量简,可选用不同质量的钢球 The main purpose of this experiment is to study the viscosity coefficient of liquid measured by Stokes’ law. It is not difficult to further test the temperature measurement and time measurement to consolidate the use of basic measuring instruments. The key point is that the steel ball has experienced the drop in the measuring cylinder Time should be appropriate, too slow to fall, too much time, too fast to fall, experienced too short a time, it is not easy to test the time, will bring too much error. For the size of a certain amount of Jane, the ball can choose different quality