Muchidzidzo chephysics, mwendaenda (Kaendaenda, Frequency) izwi rinoreva huwandu hwechiitiko chinodzokorora tichiverenga paumwe hwechiyero chenguva. Mwenda unopimwa nechiyero chinonzi Hertz unove mupimo unoreva kuti chiitiko chiri kuitika kamwe pa sekondi imwe.
