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What two processes can affect the path of seismic waves?
Seismic wave reflection and refraction are the two processes that can affect the path of seismic waves. Reflection occurs when seismic waves bounce off a boundary between different materials, while refraction occurs when seismic waves change direction as they pass from one material to another with different properties.
What does it mean when a seismic wave goes through the earths center?
When a seismic wave passes through the Earth's center, it means it has traveled through the core of the Earth. This is possible because seismic waves can travel through different layers of the Earth, including the solid inner core and the liquid outer core, although they may change speed and direction as they pass through these regions. Studying how seismic waves travel through the Earth helps scientists understand its internal structure and composition.
The fastest waves from an earthquake also called push waves are what?
The fastest waves from an earthquake, also known as push waves, are called primary waves or P-waves. These seismic waves are the first to arrive at a seismograph station and they travel through solid rock and fluid at high speeds by compressing and expanding the material they pass through.
What happens to seismic waves when they pass through the solid inner core?
Seismic waves pass through the solid inner core, but they experience a decrease in velocity and may refract due to differences in density and composition from the surrounding layers. The waves can also encounter reflection and scattering as they interact with the boundaries of the inner core.
How do seismograms recorded during earthquakes help scientists learn about the composition on earth?
Seismograms give information about the path of seismic waves and the speed of seismic waves. The speed of seismic waves depends on the density of the material the seismic wave is traveling in. We know, for example, that the core of Earth is liquid, because S waves do not travel through the center of Earth.
Which seismic body wave can penetrate the Earth's core?
P waves are seismic body waves that can penetrate the Earth's core. They are the fastest seismic waves and can travel through both solid and liquid materials, allowing them to pass through the Earth's core.
Which wave type can pass through the solid inner core?
Primary (P) waves can pass through the solid inner core of the Earth. P-waves are the fastest seismic waves and can travel through solid, liquid, and gaseous materials.
How are seismic waves changes they pass through soft soils?
When the waves pass through soft soils (sediments) they slow down and amplify.
Which layers of the earth do primary waves travel?
Primary waves, or P-waves, travel through all layers of the Earth, including the crust, mantle, and core. They are the fastest seismic waves and are able to pass through both solid and liquid materials.
What characteristic of seismic waves tells you that the composition of earth is solid?
The behavior of seismic waves, such as the way they change speed and direction as they pass through Earth's layers, indicates that the composition of Earth is solid. This is because seismic waves travel differently through solid materials compared to liquid or gaseous ones, allowing scientists to infer that Earth's interior must be solid.
How are seismic waves changed as they pass soft soils?
When the waves pass through soft soils (sediments) they slow down and amplify.
How are seismic waves change as they pass through soft soils?
Seismic waves passing through soft soils typically experience increased attenuation and dispersion compared to passing through harder materials. This leads to a reduction in the wave velocity and an increase in the wave amplitude as they travel through the softer soil layers.
Which type of seismic wave can only pass through earths mantle?
Shear waves, specifically S-waves, cannot pass through Earth's outer core due to its liquid state, while pressure waves, or P-waves, can.
Scientists have been able to determine the composition of Earth's layers by?
studying seismic waves from earthquakes. These waves travel through the Earth and are affected by the different densities of materials in each layer. By analyzing how the waves change direction and speed as they pass through the Earth, scientists can infer the composition and structure of each layer.
When part of earth's crust breaks what waves pass through the earth?
When part of the Earth's crust breaks, seismic waves pass through the Earth. These waves include primary (P) waves, secondary (S) waves, and surface waves. P waves are the fastest and can travel through both solids and liquids, while S waves are slower and can only travel through solids. Surface waves cause the most damage during an earthquake.
What types of materials do s waves pass through?
S waves, also known as secondary waves, can only pass through solid materials such as rocks and metals. They cannot travel through liquids or gases.
Through what materials do infrared waves pass?
Infrared waves can pass through materials such as air, glass, and plastics. Metal and opaque materials tend to block or absorb infrared waves.
