SOLAR SYSTEM

Detailed explanation-1: -P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.

Detailed explanation-2: -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). Secondary waves, or S waves, are slower than P waves.

Detailed explanation-3: -P waves are compressional waves that do not produce much damage. They can move through any type of material and travel at almost twice the speed of S waves.

Detailed explanation-4: -The first part of the P wave is from the right atrium, and the latter part is from the left atrium. Anterior forces in the right atrium give an initial positive deflection, and posterior forces in the left atrium give a later negative deflection. A large negative deflection can indicate a left atrial abnormality.

Detailed explanation-5: -Velocity of Body Waves P-waves will always travel faster than S-waves due to the way they deform the material they are traveling through and the restoring forces of that material. Its also important to understand that S-waves can’t travel through liquids.