How do AC waveforms work

I'm doing a precalculus project, and I have a question on how the waves work.

I know that the AC waves have a max peak and a minimum peak. I'm just wondering how they get there; I don't know why the ac waves have a max and minimum peak. if somebody can explain that, it would be great. thanks!!!

They get that way (as shown here http://www.mikegigi.com/electric.htm#THR… because if you put a coil of wire in a magnetic field and rotate either the coil or the field, that is the shape of the power - from a maximum through zero to a maximum in the other direction (or minimum) and then back through zero. The maximum occurs when the coil is crossing the field perpendicular and zero occurs when it is moving parallel to the field.

"a max and min peak" is pretty meaningless, sorry. That is why the answers are not answering the question.

A steady AC waveform follows a sine wave, so it has a positive peak and a negative peak, both of the same magnitude.

A sinusoidal voltage is given by Vac=Vpeak*sin(2*pi*f*t).