探究牛顿第二定律实验时,我们书本上用到的一个装置就是“砝码小车”装置。这个装置在高考题中也是经常出现,因为它往往和牛顿运动定律、功能关系等知识相联系,但考到这个装置时很多时候却不是用来探究牛顿第二定律的,而是涉及了测阻力、验证机械能守恒定律。这样 When we explored Newton’s second law experiment, one of the devices we used in this book was the “weight car” device. This device is also often appear in the entrance examination, because it is often associated with Newton’s laws of movement, functional relationships and other knowledge, but test to this device often not used to explore Newton’s second law, but involves measuring resistance , Verify the law of conservation of mechanical energy. such