论文部分内容阅读
20 0 3年高考物理试卷(江苏卷)第1 2题,考查利用打点计时器打出纸带上的点求木块与木板间的动摩擦因数μ,解题过程中必须通过对数据的处理求出加速度才能完成.实验装置、纸带及相应数据如图1、图2 .求加速度时所采用的计算公式为a =(sn-sn -k) /kT2 .为了有效减少测量加速度时
The 203 physical examination paper (Jiangsu volume) of the 20th three-year college entrance examination examines the dynamic friction coefficient between the wooden block and the wood board by using the hitting timer to hit the point on the paper tape. The problem must be determined by processing the data. Acceleration can be achieved. The experimental device, tape and corresponding data are shown in Fig. 1 and Fig. 2. The calculation formula used when calculating acceleration is a = (sn-sn - k) / kT2 . In order to effectively reduce the measurement acceleration