试题的难度划分，主要是依据一道题中考查的知识点的多少以及是否能够利用物

The difficulty of the test questions is mainly based on the number of knowledge points examined in a question and whether they can be solved directly using physical formulas and physical concepts. If there are few knowledge points and simple calculations using concepts or formulas can directly make the correct answer The difficulty of such questions is easy.

The difficulty division of the question is mainly based on the number of knowledge points examined in a question and whether it can be solved directly by using physical formulas and physical concepts, if the knowledge points are used less, and the use of concepts or simple calculations of formulas can be directly used to make the correct answer, the difficulty of such questions is easy.

The difficulty division of test questions is mainly based on the number of knowledge points examined in a question and whether they can be directly solved by using physical formulas and physical concepts. If there are few knowledge points to be used and the correct answers can be directly made by using simple calculation of concepts or formulas, the difficulty of such questions is easy.<br>