论文部分内容阅读
[真题再现]22.(6分)某同学利用图a所示实验装置及数学化信息系统获得了小车加速度a与钩码的质量m的对应关系图,如图b所示。实验中小车(含发射器)的质量为200g,实验时选择了不可伸长的轻质细绳和轻定滑轮,小车的加速度由位移传感器及与之相连的计算机得到。回答下列问题:(1)根据该同学的结果,小车的加速度与钩码的质量成(填“线性”或“非线性”)关系。(2)由图b可知,a-m图线不经过原点,可能的原因是。(3)若利用本实验装置来验证“在小车质量不变的情况下,小车的加速度与作用力成正
[Zhenti reproduction] 22. (6 points) A student using the experimental apparatus shown in Figure a and mathematical information system to obtain the car acceleration a and hook code quality m correspondence between the map, as shown in Figure b. The mass of the car (including the transmitter) in the experiment was 200g. The experiment selected inextensible lightweight cords and light fixed pulleys. The acceleration of the car was obtained from the displacement sensor and the computer connected to it. Answer the following questions: (1) According to the result of the classmate, the acceleration of the car is related to the quality of the barcode (”linear“ or ”nonlinear“). (2) The graph b shows that the a-m graph does not pass through the origin, the possible reason is. (3) If the use of the experimental device to verify ”in the car the same quality, the car acceleration and force positive