<P> 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--the material--is limited . Therefore, the oscillating material does not move far from its initial equilibrium position . Mechanical waves transport energy . This 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 . </P> <P> A mechanical wave requires nonlinear effects such as harmonic generation may occur, and, if large enough, may result in chaotic effects . For example, waves on the surface of a body of water break when this dimensionless amplitude exceeds 1, resulting in a foam on the surface and turbulent mixing . Some of the most common examples of mechanical waves are water waves, sound waves, and seismic waves . </P> <P> There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves . </P> <P> Transverse waves cause the medium to vibrate at a right angle to the direction of the wave or energy being carried by the medium . Transverse waves have two parts--the crest and the trough . The crest is the highest point of the wave and the trough is the lowest . The distance between a subsequent crest and a trough is half of wavelength . The wavelength is the distance from crest to crest or from trough to trough . </P>

Which of the following are properties of mechanical waves