Oscillations

A motion that repeats itself at

A motion that repeats itself at regular intervals of time. The smallest interval after which the motion repeats is called the period T.

A

A to-and-fro motion about a mean position. Every oscillatory motion is periodic, but circular motion is periodic without being oscillatory.

Frequency ν is the number

Frequency ν is the number of repetitions per unit time and ν = 1/T. The SI unit is hertz, where 1 Hz = 1 s⁻¹.

Displacement can mean change in any

Displacement can mean change in any physical quantity with time, not only position. It may represent position, angle, voltage, pressure, or fields.

SHM is oscillatory motion in

SHM is oscillatory motion in which displacement is x(t) = A cos(ωt + φ). It is the simplest oscillatory motion and occurs when the force is directly p