Name:___________________________
Activity:
Period and frequency.
Periodic motion repeats itself in time after and interval called the "period" [For this we
use the symbol
T
].
Frequency is another way to express the same thing by indicating
how frequently (how many times) the motion repeats itself in a given unit of time. [For
this we will use the symbol
f ].
Frequency and period have a simple mathematical relationship.
If the period of the
motion is
T
, then the frequency of the motion is that it happens once per unit of time
T
.
So:
1
f
T
=
.
The electrical voltage in a wall outlet pulsates at 60 cycles per second.
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 Spring '08
 SKIFF
 Frequency, Hertz, simple mathematical relationship, wall outlet pulsates

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