Because the
earth’s mantle
becomes more rigid and compressible as the depth below the asthenosphere
Where do P waves travel fastest quizlet?
Terms in this set (21)
P-WAVES travel fastest
through rock
. P-waves can travel in any kind of material( liquid , solid). S waves travel slower through rock S-waves cannot travel through the outer core – it’s liquid!
In which part of the earth are P waves generally fastest?
Generally, p-wave velocity increases with depth and increases with increasing rigidity of a material. Therefore p-waves travel fastest through the
solid, iron inner core of Earth
.
Do P waves travel faster through denser material?
The first is that P waves travel faster than S waves. This is the reason they are referred to as primary waves, as they are the first seismic waves to arrive at a seismic station. … More importantly for our purposes, P waves travel
faster through denser rock
, slower through less dense rock.
Do P waves travel fastest?
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.
What does the P stand for in P wave?
Compressional waves are also called P-Waves, (P stands for
“primary”
) because they are always the first to arrive.
Which seismic waves travel the fastest quizlet?
primary wave
– a type of seismic wave that compresses and expands the ground. This type of wave moves the fastest and can go through both solids and liquids. You just studied 16 terms!
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.
Can You Feel P-waves?
The waves also travel through the Earth at different speeds. The fastest wave, called the “P” (primary) wave, arrives first and it usually registers a sharp jolt. … “It
feels more abrupt
, but it attenuates very quickly, so if you are far away you often won’t feel the P wave.”
What are the 3 types of waves in an earthquake?
There are three major kinds of seismic waves:
P, S, and surface waves
. P and S waves together are sometimes called body waves because they can travel through the body of the earth, and are not trapped near the surface. A P wave is a sound wave traveling through rock.
What wave causes the most damage?
Answer and Explanation:
Surface waves
are the seismic waves that cause the most damage. Surface waves are named as such because they move along close to the surface of the Earth.
Do P waves travel slower through liquid?
Body waves travel through the body of a planet. Surface waves travel along the surface. There are two types of body waves: P-waves travel fastest and through solids, liquids, and gases; S-waves only travel through solids.
Surface waves are the slowest
, but they do the most damage in an earthquake.
Why do P waves slow down in a liquid?
When an earthquake occurs the seismic waves (P and S waves) spread out in all directions through the Earth’s interior. … Molten areas within the Earth slow down P waves and stop S waves
because their shearing motion cannot be transmitted through a liquid
.
Where are seismic waves most powerful?
Seismic waves can be classified into two basic types: body waves which travel through the Earth and
surface waves
, which travel along the Earth’s surface. Those waves that are the most destructive are the surface waves which generally have the strongest vibration.
What happens to S and P-waves as they travel inside Earth?
S waves cannot pass through the liquid outer core, but P waves can.
The waves are refracted as they travel
through the Earth due to a change in density of the medium. When the waves cross the boundary between two different layers, there is a sudden change in direction due to refraction. …
How fast do P-waves travel per second?
In the Earth, P waves travel at speeds from
about 6 km (3.7 miles) per second in surface rock
to about 10.4 km (6.5 miles) per second near the Earth’s core some 2,900 km (1,800 miles) below the surface. As the waves enter the core, the velocity drops to about 8 km (5 miles) per second.
