Which set S of waves travels through the Earth’s interior quizlet?
Terms in this set (10) Body Waves : Travel through Earth’s interior . Provide information about the hidden interior . P waves : primary, ‘push-pull’, compressional. P waves always travel faster than S waves .
How do S waves travel through Earth’s interior?
P- waves pass through both mantle and core, but are slowed and refracted at the mantle / core boundary at a depth of 2900 km. S – waves passing from the mantle to the core are absorbed because shear waves cannot be transmitted through liquids. This is evidence that the outer core does not behave like a solid substance.
What are P waves and S waves?
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 materials can l waves travel through?
They can pass through solids, liquids and gases easily. As they travel through rock , the waves move tiny rock particles back and forth — pushing them apart and then back together — in line with the direction the wave is traveling. These waves typically arrive at the surface as an abrupt thud.
What is the evidence that Earth’s inner core is solid quizlet?
The core is very dense and composed mostly of Iron and Nickel. The Earth’s Inner core is solid because there is so much pressure exerted that it can only exist in the solid form. The outer core is liquid iron and nickel.
What is used to record earthquake waves?
Seismic waves lose much of their energy in traveling over great distances. But sensitive detectors (seismometers) can record theses waves emitted by even the smallest earthquakes . When these detectors are connected to a system that produces a permanent recording , they are called seismographs.
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?
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.
Where do S waves travel?
S waves move rock particles up and down, or side-to-side–perpendicular to the direction that the wave is traveling in (the direction of wave propagation). Click here to see a S wave in action.
What are the similarities between S waves and P waves?
Difference between s waves and p waves
|P waves||S waves|
|They are compression waves||They are shear waves|
|Can move through solids and liquids||Can only move through solids|
|Shake the medium in the direction in which they are propagating||Shake the medium in the direction perpendicular to which they are moving|
What do P waves feel like?
The fastest wave , called the “ P ” (primary) wave , arrives first and it usually registers a sharp jolt. “The P wave tends to be a higher frequency,” Jones said. “It feels more abrupt, but it attenuates very quickly, so if you are far away you often won’t feel the P wave .”
What does the S wave mean?
What is the other name of L waves?
Also called long wave . Compare P wave , S wave.
What type of waves cause the most damage in an earthquake?
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 travel faster?
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. P – waves are compression waves that apply a force in the direction of propagation. The energy is thus less easily transmitted through the medium, and S- waves are slower.