What part of a longitudinal wave is where the particles in the medium are pushed together?

crest
trough
rarefaction
compression

Compression

What is the distance between two nearby crests or two nearby troughs?

compression
wavelength
amplitude
rarefaction
Other

wavelength

Compression

The part of a longitudinal wave where the particles in the medium are pushed together is called a compression.

To understand this concept, let's first define what a longitudinal wave is. A longitudinal wave is a type of wave where the particles of the medium vibrate back and forth parallel to the direction of the wave propagation. These waves often occur in fluids, gases, and solids.

Now, to identify the part of a longitudinal wave where the particles are pushed together, you can imagine a wave traveling through a medium like a slinky or a spring. As the wave passes through the medium, the particles in the compression are pushed closer together than they would be in their equilibrium position.

To visually identify a compression in a longitudinal wave, you can look for areas where the particles appear closely packed or compressed compared to the surrounding regions of the wave.