Here's why:
* Longitudinal waves involve the particles of the medium vibrating parallel to the direction the wave travels.
* In a transverse wave, the particles vibrate perpendicular to the direction the wave travels.
Think of a spring:
* Longitudinal wave: Imagine pushing and pulling the spring back and forth. The coils compress and expand, and the wave travels along the spring.
* Transverse wave: Imagine shaking the spring up and down. The wave travels along the spring, but the coils move up and down.
Since the particles of a medium are far apart, they can't easily move perpendicular to the direction of the wave. They can only move back and forth, causing compressions and rarefactions in the medium.
Examples of longitudinal waves:
* Sound waves
* Seismic P-waves (pressure waves)
Let me know if you have any other questions!
