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# What does the P wave do in an earthquake?

## What does the P wave do in an earthquake?

In P or compressional waves, the vibration of the rock is in the direction of propagation. 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.

What are P waves quizlet?

P waves. the first wave that reaches the location. It is the quickest, but does not cause much damage. This wave causes the rocks the move back and forth. This wave can go through both solids and liquids.

What are 3 facts about P waves?

P waves and S waves P waves travel at different speeds depending on the density of the rocks. When the density of the rocks change at a boundary the waves speed up or slow down. They are also slightly deflected when there is a change in rock density. P waves travel through solids, liquids and gases.

### What does P wave stand for?

primary
Compressional waves are also called P-Waves, (P stands for “primary”) because they are always the first to arrive. They gave us the first jolt last Friday. Shear waves propagate more slowly through the Earth than compressional waves and arrive second, hence their name S- or secondary waves.

What are P waves motion?

Seismic P waves are also called compressional or longitudinal waves, they compress and expand (oscillate) the ground back and forth in the direction of travel, like sound waves that move back and forth as the waves travel from source to receiver. P wave is the fastest wave.

What does the P wave on an ECG represent quizlet?

The P wave represents the impulse that causes the atria to contract. In medical terminology , the P wave represents the atrial depolarization.

#### What causes the P wave on the ECG quizlet?

the p wave is caused by depolarization of the atrial cardiac muscle.

How do P waves travel?

P waves travel through rock the same way that sound waves do through air. That is, they move as pressure waves. When a pressure wave passes a certain point, the material it is passing through moves forward, then back, along the same path that the wave is traveling. P waves can travel through solids, liquids and gases.

What is the characteristics of P waves?

## What type of waves is P wave?

P Waves. 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.