شبكة الكلمة: frequencies

Frequency is how often something happens in a certain amount of time. In science, it describes the number of times a wave or signal repeats every second.

Wavelength is the distance between two peaks of a light or sound wave. It is also used to describe when people have the same ideas and understand each other.

A series of events that are regularly repeated in the same order. It can also refer to a complete set of operations by a machine, or a bicycle/motorcycle.