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牛顿第一定律是研究物体在不受力的作用时的运动,是力学中的基本定律之一.牛顿第一定律的内容是:一切物体在没有受到外力作用时,总是保持静止状态或匀速直线运动状态.从这一定律出发,我们还认识到物体有一种性质——惯性,即物体具有保持静止状态或匀速直线运动状态的性质.学会探究物体不受力的作用时将如何运动物体不受力时的运动规律是由伽利略、笛卡儿等人研究出结果,并采用了实验加推理这一首创科学方法,最后由牛顿总结出的.例1如图1所示,用斜面、木板、棉布、玻璃板、小车做“探究阻力对物体运动的影响”的实验
Newton’s first law is to study the movement of objects in the role of force, is one of the basic laws of mechanics.Newton’s first law is: all objects in the absence of external force, always remain at rest or uniform From this law, we also recognize that the object has a property of inertia, that is, the object has the property of keeping a stationary state or a constant linear motion, and learning how to move an object when it is not stressed The law of motion at stress is developed by Galileo and Descartes et al., Using the first scientific method of experiment and reasoning, and finally summarized by Newton. Example 1 As shown in Figure 1, , Cotton, glass, car do “to explore the impact of resistance on the movement of objects ” experiment