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Earthquakes Quiz
Final Science Test
| Question | Answer |
|---|---|
| Continental Drift | When the continents slowly drift apart |
| Sea-floor Spreading | The formation of new areas in oceanic crust |
| Mid ocean range | Underwater mountain range formed by plate tectonics |
| Who proposed the hypothesis of continental drift | Alfred Wegener |
| Evidence of continental drift | - They found the same type of fossils on both continents - They found the same type of plants and animals that could not have traveled over water |
| Divergent boundary | When land masses move apart |
| When two plates move towards each other it is called | Convergent boundary |
| Land masses slide past eachother | Transform boundry |
| Subduction zones | when one layer goes under another ( associates with a convergent boundary) |
| Ring of fire | An area of high volcanic activity around the edges of the pacific ocean |
| What tectonic plate do we live in? | North American plate |
| Elastic rebound | Energy gets so great along the fault slips and creates body and surface waves. |
| Focus | The location of where the earthquake begins |
| Epicenter | The point on the earths surface located directly above the focus on an earthquake |
| S waves | Travels slower than a transverse wave |
| Seismograph | An instrument that measures the force of the an earthquake |
| Seismogram | A record produced by a seismograph |
| Magnitude | Number that characterizes the relative size of an earthquake |
| Seismic Gap | An active fault known to produce significant earthquakes that has not slipped in an unusually long time. |
| Tsunami | Big wave caused by earthquake or land slide |
| How does the depth of the focus affect the earthquakes intensity | The waves are closer to the earths crust making it closer and more powerful. |
| Subduction zones form at this type of boundary | Convergent |
| Type of lava that appears ropy | Pahoehoe |
| The Hawaiian islands are | Quiet eruptions and a shield volcano |
| What is true about the mid ocean ridges | Sediments are thinner in the middle |
| The stickiness of magma is called | viscosity |
| Highest number on the Modified Mercalli scale | XII (12) |
| Mt St. Helen is an | Explosive eruption and composite volcano |
| Which island sits on top of a divergent plate and has great volcanic eruption | Iceland |
| What scale is it called is it called that measures the rock movement | Moment magnitude scale |
| What type of volcano is Hawaii? | Shield |
| Things you need to know about P and S waves: | P-waves and first and travel faster S waves cause more destruction |
Created by:
2023721jk
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