✔ 最佳答案
You need to know the speed v of the wave (or other information).
To convert a displacement-time (s-t) graph into a displacement-distance (s-d) graph, follow the steps below:
(a) From the s-t graph, look out the period T of an vibration;
(b) claculate the frequency f from the equation: f = 1/T
(c) find the wavelength 入 of the wave using the equation: 入 = v/f
(d) sketch the s-d graph using the calcuated 入. The curve is sinusoidal with amplitude equals to that of the s-t graph.
To convert a displacement-distance (s-d) graph into a displacement-time (s-t) graph, follow the steps below:
(a) From the given s-d graph, look out the wavelength 入;
(b) claculate the frequency f from the equation: f = v/入
(c) find the period T of the wave using the equation: T = 1/f
(d) sketch the s-t graph using the calcuated T. The curve is sinusoidal with amplitude equals to that of the s-d graph.
