Sine Graph and Sound Waves?

Question

How do you figure out the period?

I mean I have the equation but I just don't know what it means. It is measured as T=1/f

I just don't understand

Answer 1

t = time / cycle = "time per cycle"

frequency = "number of cycles per second"

cycles per second = frequency in hertz or "frequency" = NUMBER

time / (cycle)  = 1 /  (cycles per second) = 1 / NUMBER = answer

Since time is measured in seconds, time / (cycle) = 1 / NUMBER = "time in seconds per cycle"

I can do it another way for you if you are still having trouble.

Answer 2

The period is simply the time between like points of the periodic (repeating) waveform.  For example, if the waveform is a sine function, then pick any distinguishable point such as the positive going axis crossing or the positive peak, and measure the time to the next occurrence of that point.  That defines one complete cycle of the waveform, and the time between the two points is the period.

Answer 3

f is the frequency so you just divide 1 by whatever the frequency on the graph is...