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What ways that cause the particles of the medium to vibrate parallel to the direction the waves travel?
Longitudinal waves cause particles of the medium to vibrate parallel to the direction the waves travel. In these waves, compressions (areas of high pressure) and rarefactions (areas of low pressure) move in the same direction as the wave propagation, causing the particles to oscillate back and forth in the direction of wave motion. Sound waves are an example of longitudinal waves.
How do longitudinal waves travel?
Longitudinal waves travel by vibrating particles of the medium parallel to the direction of wave propagation. This creates areas of compression (high pressure) and rarefaction (low pressure) as the wave travels through the medium. Sound waves are an example of longitudinal waves.
What are the differences between light waves and sound waves?
Light waves and sound waves are both forms of energy that travel in waves, but they have key differences. Light waves are electromagnetic waves that can travel through a vacuum, while sound waves are mechanical waves that require a medium, such as air or water, to travel through. Light waves travel much faster than sound waves, at a speed of about 186,282 miles per second in a vacuum, while sound waves travel at a speed of about 767 miles per hour in air. Additionally, light waves are transverse waves, meaning they oscillate perpendicular to the direction of travel, while sound waves are longitudinal waves, meaning they oscillate parallel to the direction of travel.
What waves need a medium to travel in?
Mechanical waves, such as sound waves, require a medium to travel through. These waves propagate by causing particles in the medium to vibrate and transfer the energy of the wave. Electromagnetic waves, such as light waves, do not require a medium and can travel through a vacuum.
What earth layer are s waves not transmitted?
S waves are not transmitted through the Earth's outer core because it is liquid, and S waves cannot travel through liquids. This creates a shadow zone on the opposite side of the Earth from an earthquake where S waves are not detected.
The shadow zone is caused by of waves as they travel through Earth.?
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 shadow zone is caused by what waves as they travel through Earth?
refraction
Why do shadow zones exist?
P-waves refract as they travel through Earth so do not rach all other pars of the earth's surface. Also S-waves can't travel through liquids and so can't pass through the earth's outer core which also causes a shadow zone.
What name do we give to the sections of the earth where no seismic waves can travel?
It's the focus
What are secondary waves used for?
Secondary waves, or S-waves, are a type of seismic wave that moves through the Earth during an earthquake. They are primarily used in seismology to help determine the location and magnitude of seismic events. S-waves can only travel through solids, and their behavior provides crucial information about the Earth's internal structure and composition. Additionally, analyzing S-wave patterns helps in assessing earthquake risks and improving building designs in seismically active areas.
Where are there no P waves or S waves?
In the Earth's outer core, which is composed of molten iron and nickel, seismic waves (P and S waves) are not able to travel through it due to its liquid state. This causes a shadow zone on the opposite side of the Earth from a seismic event, where P waves are completely deflected and S waves are not detected.
Waves that have compressions and rare fractions are called?
These waves are called sound waves. Sound waves are mechanical waves that travel through a medium, such as air or water, in the form of compressions (areas where particles are close together) and rarefactions (areas where particles are spread apart).
What happens to P- and S- waves when they reach the center of the earth?
P waves travel much faster than S waves so they reach the core faster. They can travel through the outer core, but change direction slightly, causing a p-waves shadow zone. S waves cannot travel through the outer core because it is liquid and has zero rigidity so they are diverted around it causing a much larger shadow zone called the S wave shadow zone. Surface, or L waves cannot travel through the earth at all. P-waves are observed directly opposite to the epicentre of earthquake which states that the wave passing through the earth as a diameter has no effect on its path.
Secondary waves can travel through all areas of the Earth except the?
the outer core
The shadow zone exists because?
sunlight blocks out S waves in certain regions.
How do P and S waves prove that the outer core is a liquid?
Unlike the P-wave, the S-waves, or shear waves, cannot travel through liquids, and this causes a shadow zone for S-waves opposite to where they originate(caused by the molten outer core of the Earth).
What ways that cause the particles of the medium to vibrate parallel to the direction the waves travel?
Longitudinal waves cause particles of the medium to vibrate parallel to the direction the waves travel. In these waves, compressions (areas of high pressure) and rarefactions (areas of low pressure) move in the same direction as the wave propagation, causing the particles to oscillate back and forth in the direction of wave motion. Sound waves are an example of longitudinal waves.
