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Periodic motion
 A motion that repeats itself over and over again
 Characterized by the time required to complete a cycle of it repetitive motion

Period( T)
 Time required for one cycle of a periodic motion
 Represented by the variable T
 SI Units : Time in seconds / cycle = sec


frequency
 Another measure of periodic motion that measures the number of oscillation per unit of time; tell how frequently (rapidly) the oscillations take place.
 Represented by the variable f
 the HIGHER the frequency, the MORE RAPID the oscillation
 Given by the equation:
 f= 1/T
 SI Units: cycle/seconds= 1/s or s^1

Hertz(Hz)
 1Hz= 1 cycle/ 1 second
 Measure for frequency

