The Doppler Effect is a crucial phenomenon that describes how the frequency and wavelength of sound waves change when there is relative motion between the source and the observer. Linking sound scienc...The Doppler Effect is a crucial phenomenon that describes how the frequency and wavelength of sound waves change when there is relative motion between the source and the observer. Linking sound science to interdisciplinary applications, such as music, engineering, medicine, and environmental studies, can help students appreciate the relevance and impact of these principles in their everyday lives and future careers.