What is the relationship between frequency, wavelength, and velocity of a wave?

Question

(BTW this is a question from our physics 2 module. As much as possible I would like to get an answer in such a way that all I have to do is copy and paste. I'm soooooo tired and sleepy, sorry. duh.)

Answer 1

Wavelength is the distance it take the wave to complete one cycle. A cycle being the distance the wave travels before it starts repeating the same path like a sin wave.



Frequency is how many cycles per second. So if you multiply the two you have



(distance for one cycle * number of cycles) / seconds or distance over time which is velocity.

Answer 2

I don't mean to be impolite but "copy and paste" is not what you are supposed to learn. This is a question that you need to understand perfectly before you go on to learn other things.



I suggest you talk to a music teacher and ask him to show you some instruments. Notice how the short ones make high notes and the long ones make low notes. That is because the speed of sound through air is constant. Then you look at a guitar where the length of the string is constant and you change the speed of sound by tightening the string. You always start below the note and tighten the string because it's hard to get the string to slide back across the nut when you loosen it.

Answer 3

v = Lf

where L is the wavelength and f the frequency.