Oscillations and Waves - Theory & Concepts - Wave Superposition
Oscillations (vibrations) are back-and-forth motions about an equilibrium position. Waves are propagating disturbances that carry energy from one place to another without permanently moving the medium itself. Understanding these phenomena is critical for structural engineering (earthquake resistance, wind-induced vibrations) and acoustics.
Open the complete lessonWave Superposition & Beats Simulator
Superpose two independent travelling waves. Adjust phase offsets and frequencies to demonstrate constructive/destructive interference and acoustic beats.
When two waves cross, the displacement is the sum of individual amplitudes. If frequencies differ slightly, amplitude modulation (**Beats**) occurs.
Model scope and verification
Use the displayed units and idealizations, then verify the governing balance or compatibility equation before interpreting the result.