ACCELERATING EDUCATION

ACCELERATING EDUCATION
Physics keeps life going-物理 依据 生命

Δευτέρα, 17 Οκτωβρίου 2011

IB WAVES


A travelling wave is created on a string. The graph below shows the variation with time t of the


displacement y of a particular point on the string.


The variation with distance x of the displacement y of the string at t =0 is shown below.



(a) Use information from the graphs to calculate, for this wave,


(i) the wavelength.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


(ii) the frequency.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



(iii) the speed of the wave.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 σχόλιο: