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高考题的选拔功能众所周知,高考题的导向作用有目共睹.高中物理新课程的特点之一是注重基础性,[1]高考题的研制也应该引导一线教学回归基础知识、基本技能.笔者认为2013上海物理高考题的第31题是符合上述要求的好题.图1例题.如图1,质量为M、长为L、高为h的矩形滑块置于水平地面上,滑块与地面间动摩擦因数为μ;滑块上表面光滑,其右端放置一个质量为m的小球.用水平外力
The selection of college entrance examination questions is well known, the guiding role of college entrance examination for all to see. One of the characteristics of the new high school physics curriculum focuses on the foundation, [1] the entrance examination should also guide the development of basic teaching knowledge, basic skills .I think 2013 Shanghai Physics entrance exam questions 31 is a good question in line with the above requirements. Figure 1 Example. As shown in Figure 1, the mass M, length L, height h rectangular slider placed on the ground, the slider and the ground between the dynamic friction The factor is μ; the upper surface of the slider is smooth, the right end of a small ball placed mass m with horizontal force