Electromagnetic waves in a vacuum all travel at the same velocity, the speed of light (about 3 x 10^8 m/s).
The shadow zone is caused by S-waves as they travel through Earth. S-waves, however, cannot travel through the outer core of the Earth, which is molten. This is because S-waves lose velocity when travelling through a liquid.
The same.
Their velocity (P-waves travel more quickly than S-waves) and their mode of propagation (the way they move through the earth). S-waves are transverse waves which move material from side to side (particle motion is normal to direction of travel) whereas P-waves are compression or longitudinal waves where particle motion is parallel to the direction of travel. This means that P-waves can travel through solids, liquids and gasses whereas S-waves can only travel through solids.
Surface waves, Secondary waves, Primary waves :) I had this as a science question in school a few weeks ago... hope this helps :) Oh whoops i didnt log in so i did it again.... :) :) :) :) :) :) :)
seisemic
Velocity.
Earthquake generated waves are called seismic waves. These are waves of energy that travel through the Earth's layers. Their velocity depends on the elasticity and density of the medium that they travel through.
Electromagnetic waves in a vacuum all travel at the same velocity, the speed of light (about 3 x 10^8 m/s).
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The shadow zone is caused by S-waves as they travel through Earth. S-waves, however, cannot travel through the outer core of the Earth, which is molten. This is because S-waves lose velocity when travelling through a liquid.
The seismic waves that travel along Earth;'s surface are infact known as "surface waves" of which there are two main types - Love and Rayleigh waves.
Surface waves
There are three types of seismic waves released by an earthquake. Primary waves (P waves) are longitudinal or compressional waves and travel through the Earth's interior. They are first to arrive at a seismic station (velocity 5-8 km/s). Secondary waves (S waves) are a transverse or shear wave and move at a lower speed than that of primary waves (velocity 3-5 km/s). They arrive second at the seismic station. Finally, there are surface waves which as the name suggests travel along the Earth's surface, there are two main types (the Love wave and Rayleigh wave) and these are the slowest types of seismic waves (velocity 2.5 - 4.5 km/s) and hence arrive last at the seismic station.
P waves (PRIMARY Waves) have the highest average velocity as they travel through the earth's materials.
Earthquakes can only happen in solids. Earthquake waves are a different matter:p-waves can travel through both solids and liquidss-waves can only travel through solidssurface waves (e,g, Rayleigh waves, Love waves) can only travel on the surface of solidsetc.
The same.