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2013年高考江苏卷第14题考查的是一个由惯性小实验编制而成的加速度不同的连接体问题,即传统的木板模型.大部分教师在看到这道题都会感觉2004年全国卷(Ⅱ)第25题和这道题有着惊人的相似,堪称姐妹题.其实,纵览这几年的高考题,不难发现,这对姐妹题还有一个同胞兄弟,即2010年高考重庆卷的第25题.这三道题无论从情境、问题、考查点的设置都有着异曲同工之妙.一、原题呈现试题1(2013,江苏卷)如图1所示,将小砝码置于桌面上的薄纸板上,用水平向右的拉力将板迅速抽出,砝码的移动很小,几乎观察不到,这就是大家熟悉的惯性演示实验.若砝码和纸的质量分别为m_1和
The 2013 Jiangsu Entrance Examination Volume 14 examines a carousel with different acceleration developed by a small inertial experiment, namely the traditional wood model. Most teachers will feel that the 2004 National Volume (Ⅱ ) 25 questions and this issue has a striking similarity, called sisters problem.In fact, a review of the college entrance examination in recent years, not difficult to find that there is a sibling sister and brother that the 2010 college entrance examination in Chongqing section 25 questions.The three questions in terms of situations, problems, exam points set has a similar effect.A, the original question 1 (2013, Jiangsu volume) as shown in Figure 1, the small weight placed on the desktop Of the thin cardboard, with a horizontal pull to the right board will quickly pull out the weight of the movement is small, almost impossible to observe, which is familiar with the inertial demonstration experiment.If the weight and quality of the paper were m_1 and