Simple Harmonic Motion: Finding the Phase Constant

  • C. Osaba-Rodríguez Departamento de Física, Universidad Tecnológica de La Habana “José Antonio Echeverría” (CUJAE), 19390 La Habana, Cuba


The treatment of mechanical oscillations in General Physics courses usually begins with the study of Simple Harmonic Motion in a system composed of a block attached to the end of a spring. To obtain the law of motion for such system involves finding the phase constant as a difficult step for students. To determine the phase constant requires operating with two independent equations related with the particle’s initial speed and position. Some textbooks oversimplify the procedure and obtain the phase constant using only one equation related to the initial conditions of the motion. How to determine the phase constant for such oscillatory systems is discussed.

Jul 14, 2019
How to Cite
OSABA-RODRÍGUEZ, C.. Simple Harmonic Motion: Finding the Phase Constant. Revista Cubana de Física, [S.l.], v. 36, n. 1, p. 51-54, july 2019. ISSN 2224-7939. Available at: <>. Date accessed: 30 mar. 2023.
Original Articles