(Ã´r'dn-Ä­t) The distance of a point from the x-axis on a graph in the Cartesian coordinate system. It is measured parallel to the y-axis. For example, a point having coordinates (2,3) has 3 as its ordinate. Compare abscissa.
How well s waves travel depends on the medium's shear modulus, or rigidity. Liquids and gases have no rigidity so they do not allow s waves to propagate(travel). P waves depenâ¦d on the medium's bulk modulus, or compressibility, so they propagate in liquids and gases, as well as solids, since they are both compressible. 6 people found this useful.
P waves are pressure waves that travel faster than other waves through the earth to arrive at seismograph stations firstly, hence the name Primary. These waves can travel through any type of material, including fluids, and can travel at nearly twice the speed of S waves.