**Displacement (s):** the total distance that a simple harmonic oscillator moves
from its equilibrium point - __measured in meters (m__).

**Amplitude (A):** the maximum displacement of a simple harmonic oscillator
- __measured in meters (m)__

**Frequency (***f*): the number of oscillations per second - __measured in Hertz (Hz or ____s__^{-1}__)__

**Period (T):** the time required for an oscillator to complete one cycle
- __measured in seconds (s)__

*** Let's take a closer look at the relationship between frequency and period.
Frequency is measured in cycles per second, whereas period is measured in time per cycle. They are reciprocals of each other!
***

Therefore: *f* = 1/T and T =
1/*f*