Explore the fundamentals of waves in this comprehensive physics lesson. Begin with clear definitions of transverse and longitudinal waves, understanding their distinct characteristics and movement patterns. Delve into the crucial relationship between wave speed, frequency, and wavelength, applying this knowledge through practical calculations. Investigate the factors affecting wave speed on a string, including tension and linear mass density. Conclude by examining constructive and destructive interference, learning how waves interact when in phase or out of phase. Gain a solid foundation in wave physics, essential for further study in acoustics, optics, and quantum mechanics.