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爱因斯坦曾说过:“提出一个问题往往比解决一个问题更为重要,因为解决一个问题也许只是一个数学上或实验上的技巧问题,而提出新的问题、新的可能性,从新的角度看旧问题,却需要创造性的想象力,而且标志着科学的真正进步。”2013年江西省中考物理第17题素材就是来源于实验探究中的新问题。例题(2013年江西省中考题)在测“滑轮组机械效率”的实验中,瑞瑞同学在与动滑轮相切的细绳上作一标记A(如图1甲所示),然后用大小
Einstein once said: “It is often more important to ask a question than to solve a question, because to solve a question may be merely a mathematical or experimental question of skill, but a new question, a new possibility, a new one Looking at the old problems from the angle of view requires creative imagination, and marks a real progress of science. ”In 2013, the material of the 17th issue of the Senior High School Entrance Examination in Jiangxi Province was derived from a new question in experimental research. Example (Jiangxi 2013 senior high school entrance examination questions) In the test “pulley group mechanical efficiency ” experiment, Rui Rui students in the tangent of the pulley with a mark A (Figure 1 A), and then use the size