Oscillation

Repetitive variation of a measure.

Oscillation refers to repetitive variation of some measure, such as a physical quantity or a mathematical function. It is characterized by regular fluctuations between two or more states.

/ɒsɪˈleɪʃən/

From Latin oscillare, 'to swing', from osculum, 'swing'.

An oscillation is when something repeats back and forth, like a swing going from side to side or a pendulum ticking.

What is oscillation? It's the repetitive variation of a measure
What causes oscillation? Various forces can cause it, like gravity or electricity
Can oscillations be useful? Yes, they are used in many technologies like clocks and radios

fluctuation vibration pulsation

motion wave

pendulum motion sinusoidal oscillation torsional oscillation

mathematical concept physical phenomenon