论文部分内容阅读
七、橡皮筋的倔强系数的研究实验高中课本上册第二章讲到弹力时说:“实验证明,在弹性限度内,弹簧的弹力和弹簧的伸长(或缩短)的长度x成正比,即f=-kx,式中k称为弹簧的倔强系数,它和弹簧的材料有关。事实上,倔强系数不仅跟弹性体的材料有关。现在我们用橡皮筋来研究倔强系数跟哪些因素有关。用一根橡皮圈挂在钩子上,量出它的自然长度l_0;然后在它下面挂一个砝码,再量出它的长度l_1·l_1-l_0就
Seventh, the study of the rubber band’s reluctant coefficient experiment The second chapter of the high school textbook, when we talk about elasticity, said: "Experiments have shown that within the elastic limit, the elastic force of the spring is proportional to the length x of the spring’s elongation (or shortening), ie, f = -kx, where k is called the spring’s marginal coefficient, and it is related to the material of the spring. In fact, the coefficient is not only related to the material of the elastomer. Now we use the rubber band to study the factors related to the stubborn coefficient. A rubber band hangs on the hook and measures its natural length l_0; then hangs a weight under it and measures its length l_1·l_1-l_0.