¿Qué es el sonido?: como viaje el sonido

Sound requires a medium to travel and is produced by vibrations. It moves in energy waves known as sound waves, specifically longitudinal waves, where particles vibrate in the direction of the wave. This motion is similar to a spring's movement. Sound is transmitted through vibrations and collisions of matter, whether in solids, liquids, or gases. It propagates in all directions from its source, allowing everyone nearby to hear a sound like a key dropping.

What is a longitudinal wave and how does it differ from other types of waves?

Explain how sound travels in all directions from its source.