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compression waves the moving particles move backwards and forward in the same direction as the energy transfer.
You mean longitudinal wave by compression wave? Electromagnetic wave is transverse in nature. It does not need a material medium. It can pass even through vacuum. But compression waves bady needs a material medium.
No
Yes
yes
4. shear waves and compression waves travel at different speeds, therefore the difference in arrival time can be used to fix the distance.
P-waves are faster than s-waves. Both can pass through solid rock, but only p-waves can pass through gases and liquids === ===
compression waves the moving particles move backwards and forward in the same direction as the energy transfer.
P-waves stand for primary waves, but a good trick is to think of the P as standing for pressure, because P waves are compression waves. S-wave stands for secondary wave, but the trick is to think of the S as standing for shear wave. This is because S-waves move in a shearing (side to side) motion. The means that S waves cannot travel through liquid, and also travel slower than P-waves.
Yes! P-waves are indeed compression or longitudinal waves which push the crust together and pull it apart as they travel. They are also able to travel through liquids and gasses, unlike S-waves (shear or transverse waves) which can only travel through solids.
A shear wave is a type of seismic wave.
Shear waves will not pass through the molten outer core of the Earth.
You mean longitudinal wave by compression wave? Electromagnetic wave is transverse in nature. It does not need a material medium. It can pass even through vacuum. But compression waves bady needs a material medium.
P-waves and primary waves are the same thing. They may also be known as pressure waves (or compression waves) due to their mode of propagation, the way they move through the Earth.
The sudden density change from the lower mantle to the outer core causes P-waves (compression or longitudinal waves) to be refracted and S-waves (shear or transverse waves) to be absorbed as the outer core is liquid and so cannot support the propagation of S-waves.
shear waves
Shear waves