hertz how to calculate

[searley]

a frequency of 500 hertz has a period of = ? f= 1/t answer is0.002s.

how do you come to this answer.well baffeld. X(

 

[twin&earth]

my brother says its one over frequency.

sorry he has just said its one over time so the above is wrongBlushing

 

[mikey-c]

Frequency = 1/ period

or

Period = 1/ frequency

i.e f = 1/500

=0.002 second

 

[SPECIAL LOCATION]

Perhaps to explain a bit more in "long hand" if anyone trying get to grips with what all these bits mean....

Frequency: is the number of occurrences of a repeating event for a standard duration of time

Time: The standard SI unit of time is the second.

Period: This is the duration for one cycle of a repeating event.

so a frequency 500Hz is 500 cycles per second.

i.e. If you drew a graph for an ac voltage.. one cycle would:-

start at 0v to a positive peak then back to 0v then to a negative peak then back to 0v!

that is one duration of the event.. {the period}

if you get 500 of them per second then the duration of that one period is

1/500 = 0.002 of a second.

or working backward if it takes 0.002 of a second for one period...

how many can you cram into 1 second?

1/0.002 = 500cycles per second {Hz}!