Definition of accelerate. accelerated. ; accelerating. intransitive verb. 1 : to move faster : to gain speed The car slowly accelerated. The pace of change has accelerated in recent months. 2 : to progress from grade to grade more rapidly than usual : to follow a speded-up educational program. transitive verb.
A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission âthe materialâis limited.Therefore, oscillating material does not move far from its initial equilibrium position.his energy propagates in the same direction as the wave. Any kind of wave (mechanical or electromagnetic) has a certain energy. Mechanical waves can be produced only in media which possess elasticity and inertia. A mechanical wave requires an initial energy input.
S-waves are shear waves, which move particles perpendicularly to their direction of propagation. They can propagate through solid rocks because these rocks have enough shear strength. The shear strength is one of the forces that hold the rock together, and prevent it from falling into pieces.