What are two differences between P waves and S waves?

What are two differences between P waves and S waves?

P waves are recorded earlier than S waves, because they travel at a higher velocity. P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth.

What is the difference between P wave and S wave which one travels faster?

P-waves and S-waves are body waves that propagate through the planet. P-waves travel 60% faster than S-waves on average because the interior of the Earth does not react the same way to both of them. The energy is thus less easily transmitted through the medium, and S-waves are slower.

What is the time difference ∆ T between the P and S waves?

What is the interval between the P wave and S wave? S waves are indicated by an abrupt change in wave amplitude. In the seismogram below, we see that the S wave arrived at about 34 sec after the P wave arrived. This time difference is called the S-P interval and is the lag time between the P and S wave.

What type of motion does a P wave have quizlet?

Compressional motion (P waves) or Shear motion (S waves) They travel outward in all directions from their point of origin.

How are S waves and P waves similar quizlet?

How are S waves and P waves similar? They shake the ground. They travel through liquids. They arrive at the same time.

What difference between P waves and S waves was used to find the earthquake’s epicenter?

The difference in speeds of the P and S waves provide a way to locate the epicenter. The P waves always “wins the race” and the S waves is always the slower “car”. The greater the interval between the arrival of the first P wave and the first S wave, the greater the distance to the earthquake epicenter.

What happens to the time differences between P and S waves as your distance from the epicenter increases?

As the P and S waves travel out from an earthquake the P waves get progressively farther ahead of the S waves. Therefore, the farther a seismic recording station is from the earthquake epicenter the greater will be the difference in time of arrival between the P and S wave.

What is the difference between P and S wave arrival times in three cities?

The different waves each travel at different speeds and therefore arrive at a seismic station at different times. P waves travel the fastest, so they arrive first. S waves, which travel at about half the speed of P waves, arrive later.

How are P waves and S waves related?

This is how P waves travel through the earth, moving it back and forth. An earthquake also causes secondary or shear waves, called S waves. These travel at about half the speed of P waves, but can be much more destructive. S waves move the earth perpendicularly to the direction the wave is traveling.

What kind of motion does S wave produce?

S waves produce vertical and horizontal motion in the ground surface. Particle motion consists of alternating transverse motion. Particle motion is perpendicular to the direction of propagation (transverse). Transverse particle motion shown here is vertical but can be in any direction.

How many miles per second do P waves travel?

At Earth’s surface, P waves travel somewhere between 5 and 8 kilometers per second (3.1 and 5 miles per second). Deeper within the planet, where pressures are higher and material is typically more dense, these waves can travel up to 13 kilometers per second (8.1 miles per second).

How are S waves different from sine waves?

S waves are transverse waves, which means they vibrate up and down, perpendicular to the motion of the wave as they travel. In an S wave, particles travel up and down and the wave moves forward, like the image of a sine wave.