GEOLOGY

Detailed explanation-1: -There are two types of seismic waves, primary waves and secondary waves. Primary waves, also known as P waves or pressure waves, are longitudinal compression waves similar to the motion of a slinky (SF Fig. 7.1 A).

Detailed explanation-2: -P waves can move through solid rock and fluids, like water or the liquid layers of the Earth. It squishes and stretches the rock it moves through just like sound waves compress and expand the air as they move through it.

Detailed explanation-3: -The vibrating parts of the Slinky move back and forth in the same direction as the wave is traveling. This type of wave is called a longitudinal wave, or a compression wave, and it’s a model for seismic primary waves, or P waves.

Detailed explanation-4: -P waves and S waves are alike because they are both types of seismic waves produced by the sharp movement of rocks within the earth. Both P and S waves are body waves, which means that they both travel through the interior of the earth.

Detailed explanation-5: -S waves and P waves P waves or Primary waves are the first waves to hit the seismographs when an earthquake strikes. They are longitudinal waves which means that the direction of motion and propagation are the same.