SINE WAVE By N., Pam M.S. - April 13, 2013 a mathematical expression of a trigonometric function of sine or cosine and is a function of time. It has only one frequency component. A sine wave is not like a complex wave. SINE WAVE: "A sine wave has amplitude, frequency and phase." Related Psychology Terms FOURIER ANALYSIS KAPPA WAVE BETA WAVE FOURIER SPECTRUM DELTA WAVE WAVELENGTH SPIKE-AND-WAVE DISCHARGES AMPLITUDE OF LIGHT WAVE PURE TONE THETA WAVE Cite this page: N., Pam M.S., "SINE WAVE," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/sine-wave/ (accessed February 20, 2020).