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
Where do P-waves travel the fastest?
Because the
earth’s mantle
becomes more rigid and compressible as the depth below the asthenosphere increases, P-waves travel faster as they go deeper in the mantle. The density of the mantle also increases with depth below the asthenosphere. The higher density reduces the speed of seismic waves.
Where do P-waves travel through?
In a P wave, the rock particles are alternately squished together and pulled apart (called compressions and dilatations), so P waves are also called compressional waves. These waves can travel through solids, liquids, and gases. P waves can travel through
the liquid outer core
.
Why do P-waves travel faster in solids?
Because they are so close, than can collide very quickly, i.e. it takes less time for a molecule of the solid to ‘bump’ into its neighborough. Solids are packed together tighter than liquids and gases, hence
sound
travels fastest in solids.
Where do seismic waves travel quizlet?
How do seismic waves travel? They move
outward from the focus in all directions
. What is the epicenter? The point on Earth’s surface directly above the earthquake’s focus.
Which is faster S or P wave?
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.
Why do S waves cause more damage than P waves?
S waves are more dangerous than P waves
because they have greater amplitude and produce vertical and horizontal motion of the ground surface
. The slowest waves, surface waves, arrive last. They travel only along the surface of the Earth. There are two types of surface waves: Love and Rayleigh waves.
Why are there no P waves received in the P wave shadow zone?
The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from
S waves being stopped entirely by the liquid core
and P waves being bent (refracted) by the liquid core.
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.”
Why do P waves slow down in liquid?
S and P Wave Impact
This means that the P waves slow down
as they enter the liquid outer core
. This causes them to refract (i.e. change direction). They also refract when they leave the outer core.
Do P waves travel faster through solids or liquids?
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.
What happens to S and P waves as the travel deeper into the Earth’s mantle?
The speed of P waves and
S waves increases
as they travel deeper into the Earth’s mantle . They travel through the Earth in curved paths, but they change direction suddenly when they pass through the boundary between substances in different states.
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!
Where do seismic waves travel slowest and fastest quizlet?
Which is faster S or P wave? surface waves are slowest and travel
the earth’s surface
. P-waves are the fastest and travel through earth. S-waves also travel fast and through earth but not through the core.
What causes the velocity of seismic waves to change quizlet?
seismic waves, which change speed and direction when they encounter different materials. … There is an abrupt increase in velocity of P-waves at this point due to
the change in density from crust to mantle
. S/P waves usually travel in a direct path through. the earth’s mantle.
