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Shadow zones are areas where seismically waves do not travel?
Malikia Sylvester
yes
Alexander Chasse
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What characteristics do all sound waves have?
Sound waves are LONGITUDINAL. This means the direction of the particles is the same as the direction of the wave. Sound waves are a series of compressions (areas of high density) and rarefactions (areas of low pressure). All sound waves are caused by vibrations. They only travel if there is a medium for them to travel along, therefore there is no sound in space, or in a vacuum as it cannot travel.
Sound travels as which type of wave?
sound waves travel as longitudinal waves, that is the movement of the wave is in the direction of travel. sound is made by vibrations, therefore sound waves create areas of stretched apart air (rarefactions) and compressed air (compressions) which are areas of low and high pressure respectively.
Why do sound waves travel in waves?
Because they are waves, and waves travel that way.
How do sound waves travel what do sound waves need in order to travel?
sound waves bounce off of walls. they need air to travel.
How are water waves different from electromagnetic waves?
electromagnetic waves can travel through vacuum while water waves travel in water.
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
What name do we give to the sections of the earth where no seismic waves can travel?
It's the focus
The shadow zone exists because?
sunlight blocks out S waves in certain regions.
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.
What characteristics do all sound waves have?
Sound waves are LONGITUDINAL. This means the direction of the particles is the same as the direction of the wave. Sound waves are a series of compressions (areas of high density) and rarefactions (areas of low pressure). All sound waves are caused by vibrations. They only travel if there is a medium for them to travel along, therefore there is no sound in space, or in a vacuum as it cannot travel.
Secondary waves can travel through all areas of the Earth except the?
the outer core
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.
Sound travels as which type of wave?
sound waves travel as longitudinal waves, that is the movement of the wave is in the direction of travel. sound is made by vibrations, therefore sound waves create areas of stretched apart air (rarefactions) and compressed air (compressions) which are areas of low and high pressure respectively.
Why do sound waves travel in waves?
Because they are waves, and waves travel that way.
Where are there no P waves or S waves?
Shadow zone
What happens to seismic waves when they pass through the liquid outer core?
There are two types of waves. There are S waves (sheer waves) and P waves (compressional waves). The S waves won't travel through the outer core because it's a liquid, but the P waves will go through it and continue going through the inner core as well.
