论文部分内容阅读
把实际的研究对象或物理过程抽象为理想化的物理模型,然后分析物理模型所涉及的物理量及其相互关系,最后给出其中的某些物理量作为已知条件,另一些物理量作为待求量,这就是物理试题的编拟过程.正因为物理试题是根据物理模型编拟出来,所以解答时必须首先正确还原物理模型,并且清晰地认识物理模型的本质特征,从而正确利用与其相关的物理量及其关系,完成解题任务. 中学物理中的物理模型很多,在此仅以“子弹打木块模型”为例加以分析,期望能起抛砖引玉之功效.
Abstract the actual research object or physical process into the idealized physical model, then analyze the physical quantities involved in the physical model and their interrelationships, and finally give some of the physical quantities as the known conditions, and some of the physical quantities as the required quantities, This is the preparation of the physical examination questions.As the physical test is based on the physical model, so the solution must first correctly restore the physical model, and clearly understand the physical characteristics of the physical model, and thus the correct use of their physical quantities and their Relationship, to complete the task of solving problems.Many physical models in middle school physics, here only “bullet playing block model ” as an example to be analyzed in the hope can play a valuable role.