滑块问题是物理教学中常用的最简单、最典型的模型,教师只要将其物理情景迁移或对初始条件与附加条件稍作变更、拓展、延伸,便可构成情景各异的多种考查学生能力的综合题;其二,这类问题和动能定理、动量定理、牛顿三定律以及两个守恒定律等重要内容结合得非常紧密,是整个力学中的重要题型。而从能量、动量的角度来认识物理过程和处理问题通常又是物理中的最佳方法。能量、动量及有关规律贯穿 Slider question is the simplest and most typical model commonly used in physics teaching. A teacher can change the physical situation or slightly change, expand, and extend the initial conditions and additional conditions to form a variety of test students with different situations. A comprehensive problem of competence; Second, such issues and the kinetic energy theorem, the momentum theorem, Newton’s three laws, and the two conservation laws and other important content are combined very closely, and are important questions in the entire mechanics. Recognizing physical processes and handling problems from the perspective of energy and momentum is usually the best method in physics. Energy, momentum and related laws run through