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2008年全国理综卷Ⅰ第23题考查的是匀加速直线运动,问题情景熟悉、常规,但因涉及的物理量多,给定的已知量较少,故给学生顺利求解增加了难度。再因匀变速直线运动的公式较多,不同的公式组合,可以形成多种不同的思路与解法,因此在解题策略上有很大的开放性与发散度,很好地考查了学生灵活应用公式及运用数学知识解决物理问题的能力。现笔
In 2008, the 23rd issue of the National Institute of Physical Education Vol. I examined uniform acceleration linear motions. The problem scenarios were familiar and routine. However, due to the large number of physical quantities involved, the given known amount was less, so it was more difficult for students to solve problems smoothly. Because there are many formulas for uniform linear motion, different formulae can form different ideas and solutions. Therefore, there is a great deal of openness and divergence in the problem-solving strategy. It is a good test for flexible application of students. Formulas and the ability to use mathematical knowledge to solve physical problems. Pen