What is compression in the context of wave physics?

Compression in wave physics specifically refers to a region in a longitudinal wave where the particles of the medium are packed closely together. This phenomenon occurs when the wave travels through the medium, causing areas of higher pressure as the particles collide and push against one another. In the context of sound waves, for instance, compressions are vital to the transmission of sound because they create the areas of increased density that carry sound energy through air or other mediums.

Understanding compression is critical because it forms part of how longitudinal waves operate, demonstrating the mechanics of wave behavior. The tight packing of particles in a compression zone results in higher pressure, contributing to the overall movement and propagation of the wave through the medium.