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物理练习题,特别是其中的计算题,有人以为只要一支笔、一张纸就可以解决问题了。其实有的计算题,由于学生对其中的物理过程并不十分清楚,因此往往死代公式,而全盘解错。细细研究教材中的练习题,其中已经安排了相当数量的实验题,这些题目,如果学生首先动手做一做,然后再进行解答,可以加深对物理概念的理解。以高一教材为例,第44页,练习七第(5)题的上半题:“在水平桌面上放一木板,在木板上放一本书。慢慢抬起木板的一端,直到书开始下滑为止。测出这时木板与水平面的倾角,算出书
Physical exercises, especially the calculation of the question, some people think that as long as a pen, a piece of paper can solve the problem. In fact, some computational questions, because students are not very clear about the physical process, so often the formula of the death, but the overall error. Carefully study the exercises in the textbook, which has arranged a considerable number of experimental questions, these topics, if students first do one, and then answer, you can deepen the understanding of the concept of physics. Take high school textbook as an example, on page 44, practice the first half of Question 5 (5): "Put a plank on a horizontal table and put a book on a plank. Slowly lift one end of the plank until the book Began to decline so far. Measured at this time the inclination of the board and the horizontal plane, calculate the book