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Questions and Answers
What are the three layers of the Earth's interior?
Crust, Mantle, Core
Who proposed the theory of continental drift?
The primary waves are the fastest seismic waves.
True
Which of the following best describes secondary waves?
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Seismic waves are generated by __________.
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What are tectonic plates?
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Which seismic wave type causes the ground to move side to side?
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What is the role of seismographs?
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What structures are formed by the interaction of tectonic plates?
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Study Notes
Seismic Waves
- Seismic waves are vibrations that travel through the Earth.
- Seismic waves are generated by earthquakes and recorded by instruments called seismographs.
Types of Seismic Waves
- There are three main types of seismic waves: primary waves (P-waves), secondary waves (S-waves), and surface waves (Love waves and Rayleigh waves).
- P-waves are the fastest and can travel through both solids and liquids.
- S-waves are slower and can only travel through solids.
- Love waves are the fastest surface waves and cause side-to-side motion.
- Rayleigh waves cause an elliptical motion like ocean waves.
How Seismic Waves Provide Information About the Earth's Interior
- Changes in the speed of seismic waves as they travel through the Earth provide information about the Earth's interior.
- P-waves are refracted (bent) and reflected (bounced back) when they encounter changes in density and composition.
- The sudden change in velocity and direction of seismic waves at specific depths indicate boundaries between different layers of the Earth.
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Description
Explore the fascinating world of seismic waves in this quiz. Learn about the three main types of seismic waves: P-waves, S-waves, and surface waves, and discover how they provide critical information about the Earth's interior. Test your knowledge of how these waves interact with the Earth's structure and the science behind earthquakes.
