Thursday, January 3, 2013

Frequency


Frequency means the number of times that something happens during a certain length of time.

So for example, if you clap your hands 3 times,
then 3 is the number of times

If you count out 10 seconds,
that is the length of time.

If you clap your hands 3 times while you count out 10 seconds,
then 3 over 10 is the frequency.

You can write it like 3/10.

If you clap your hands 7 times in that 10 seconds, that's 7/10, which is a higher frequency
If you clap your hands just 1 time in that 10 seconds, that's 1/10, which is a lower frequency

We can use frequency to measure lots of things from music to heart beats to airplanes!
frequency
(from: wikipedia - frequency)

Sometimes we also use the word occurrences instead of saying number of times.