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21 Cards in this Set
- Front
- Back
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Primary waves travel through what? |
through the earth. |
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How are secondary waves alike but also different to primary waves? |
They too travel through earth, however they're slower. |
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How do surface waves travel and how fast are they in relation to other waves? |
On the surface. They are the slowest |
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What can't s-waves travel through? |
Liquids |
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What wave form can travel through all states of matter? |
Primary waves |
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Under what planet condition would cause waves to travel in straight lines. |
If earth were completely solid. |
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What causes waves to refract? |
Density |
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How does the S-wave shadow affect S-waves |
By having liquid prevent s-waves from reaching certain regions |
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How does the P-wave shadow zone affect P-waves? |
By having refraction prevent P-zones from reaching certain regions |
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How do divergent boundaries affect plates? |
Pulls them apart. |
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How do convergent boundaries affect plates? |
Has 2 plates collide. |
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How do transformative boundaries affect plates? |
Has 2 plates slide next to each other. |
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How are divergent boundaries caused? |
Denser material from below is forced up |
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Where are continents forced apart? |
At the spreading center |
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How are rift valleys created?
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By denser material sinking. |
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What happens to the old layers of crust on earth? |
Newly created crust forces older crust away. |
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What causes convergent boundaries to occur? |
1) Ocean crust meeting continent 2) Ocean crust meeting crust 3) Continental crust meets other crust |
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What is a subduction zone? |
Where material is foced deep into mantle |
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What are ophiolites? |
Where denser subducted material is scraped off of continent |
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What is the pacific ring of fire? |
The volcanic region around pacific plate |
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What is a hot spot? |
Where mantle plumes are forced through the crust. |
