Mechanical Waves are waves made
through medium such as tube.
There are two tyeps of mechanical waves, they are longitudinal and transverse.
Longitudinal or compressional waves are when the particles in the tube do not
move in accordance of the wave, just back and forth with respect to their
equilibrium positions. The displacement of the wave particles is parallel to
the wave made. Transverse waves are when the particles moving against the oscillating
up and down about with respect to their equilibrium positions. Therefore the displacement
of the wave particles is perpendicular to the wave made