Online Test - February Break
This Test is for JKO students in EARTH SCIENCE.
Please make sure you have your ESRT - (Earth Science Reference Table) BEFORE beginning the test. . . You WILL need to use it to answer some of the questions. You are allowed to use any other sources (internet, dictionary) to answer the questions.
You have 2 chances to take this test. So if you do not like your score the 1st time. . . . Take it again! The better score will be used in the gradebook.
Scores are automatically sent to your teacher. BUT. Read more. . . . Print out your score certificate and receive 5 bonus points :)
GOOD LUCK!
Questions and Answers
- 1.
Write text here
- 2.
How are mountains formed during a earthquake?
- A.
The edges of continental or oceanic plates collide.
- B.
The separation of plates.
- C.
Plate sliding past each other.
Correct Answer
A. The edges of continental or oceanic plates collide.Explanation
When the edges of continental or oceanic plates collide, it creates immense pressure and force. This force causes the crust to buckle and fold, leading to the formation of mountains. The collision between plates can also result in the uplift of rocks and the creation of fault lines. This process is known as orogeny and is responsible for the formation of many of the world's major mountain ranges, such as the Himalayas and the Rockies.Rate this question:
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- 3.
What part of the earth can't S-waves travel through?
- A.
Mantle
- B.
Crust
- C.
Outer core and inner core
Correct Answer
C. Outer core and inner coreExplanation
S-waves, also known as shear waves, are a type of seismic waves that can only travel through solid materials. The outer core and inner core of the Earth are both composed of molten iron and nickel, making them liquid. Therefore, S-waves cannot travel through the outer core and inner core.Rate this question:
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- 4.
Sudden motion or trembling of Earth when energy stored in rocks is released.
- A.
Thrust fault
- B.
Volcano
- C.
Earthquake
- D.
Normal fault
Correct Answer
C. EarthquakeExplanation
An earthquake is the sudden motion or trembling of the Earth caused by the release of energy stored in rocks. This release of energy can occur due to various factors, such as tectonic plate movements or volcanic activity. Earthquakes can result in the shaking of the ground, causing damage to structures and posing a threat to human life.Rate this question:
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- 5.
Large sea wave, produced by submarine earthquake or a volcano.
- A.
Volcano
- B.
Earthquake
- C.
Transform boundary
- D.
Tsunami
Correct Answer
D. TsunamiExplanation
A tsunami is a large sea wave that is typically caused by a submarine earthquake or a volcano. Unlike regular ocean waves, tsunamis can travel across entire ocean basins and can cause significant damage when they reach coastal areas. This makes it the correct answer in this context, as both submarine earthquakes and volcanoes are known to generate tsunamis.Rate this question:
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- 6.
Secondary waves are
- A.
Elastic waves that cause compression then expansion in the rock and act like a slinky
- B.
Similiar to ocean waves and basically roll through the crust up and down within a vertical plane.
- C.
Shear waves that cause up and down motion in the crust and only move through solids.
Correct Answer
C. Shear waves that cause up and down motion in the crust and only move through solids.Explanation
Secondary waves, also known as S-waves, are a type of seismic waves that travel through the Earth's interior during an earthquake. These waves cause up and down motion in the crust and can only move through solids. Unlike primary waves (P-waves) which can travel through both solids and liquids, S-waves are unable to propagate through fluids. This is because S-waves rely on shear forces to propagate, causing particles to move perpendicular to the direction of wave travel. Therefore, the correct answer is that secondary waves are shear waves that cause up and down motion in the crust and only move through solids.Rate this question:
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- 7.
Initial rupture point of an earthquake, typically below the Earths surface.
- A.
Epicenter
- B.
Focus
- C.
Benioff zone
Correct Answer
B. FocusExplanation
The focus refers to the initial rupture point of an earthquake, which is typically located below the Earth's surface. It is the point where the seismic energy is released and originates the earthquake. The focus is different from the epicenter, which is the point on the Earth's surface directly above the focus. The Benioff zone, on the other hand, is a region in the Earth's subduction zone where earthquakes occur due to the interaction of tectonic plates.Rate this question:
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- 8.
There was a major earthquake that happened in Haiti that occurred in the year 2010.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because there was indeed a major earthquake in Haiti in 2010. This earthquake, known as the Haiti earthquake or the Port-au-Prince earthquake, occurred on January 12, 2010, and had a magnitude of 7.0. It caused widespread devastation and loss of life, with estimates ranging from 230,000 to 316,000 people killed. The earthquake also caused significant damage to infrastructure and left millions of people homeless. The event had a profound impact on Haiti and led to a massive international humanitarian response.Rate this question:
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- 9.
What is created when plates converge?
- A.
Sinkholes
- B.
Lakes
- C.
Valleys
- D.
Mountains
- E.
None of the above
Correct Answer
D. MountainsExplanation
When plates converge, they collide with each other, causing compression and intense pressure. This leads to the formation of mountain ranges as the Earth's crust is pushed upward and folded. The collision between the plates forces the rocks to buckle and fold, creating large-scale uplift and the formation of mountains. Therefore, mountains are created when plates converge.Rate this question:
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- 10.
What instrument is used to record earthquakes?
- A.
A seismograph
- B.
A computer
- C.
A tape measure
- D.
A protractor
- E.
A transformer
Correct Answer
A. A seismographExplanation
A seismograph is used to record earthquakes. It is a scientific instrument that measures and records the motion of the ground during seismic activity. It consists of a sensitive sensor called a seismometer that detects the vibrations caused by earthquakes. These vibrations are then recorded on a drum or a digital device, allowing scientists to analyze and study the characteristics of earthquakes, such as their magnitude and duration. A computer, tape measure, protractor, and transformer are not instruments specifically designed for recording earthquakes.Rate this question:
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- 11.
What is the energy called which builds up before an earthquake is set of?
- A.
Foreshocks
- B.
Amplification
- C.
Asperity
- D.
Attenuation
- E.
Divergent
Correct Answer
A. ForeshocksExplanation
Foreshocks are small earthquakes that occur before a larger earthquake, indicating that energy is building up along a fault line. These smaller seismic events serve as a precursor to the main earthquake and can help scientists predict the timing and magnitude of the impending earthquake. Therefore, foreshocks are the energy that builds up before an earthquake is set off.Rate this question:
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- 12.
Melted rock inside the Earth is called _______.
- A.
Crust
- B.
Iron
- C.
Lava
- D.
Magma
Correct Answer
D. MagmaExplanation
Melted rock inside the Earth is called magma. Magma is formed when solid rock in the Earth's mantle or crust melts due to high temperatures and pressure. It is a hot, molten mixture of various elements and compounds, including silicates, that can be found beneath the Earth's surface. Magma can eventually rise to the surface through volcanic activity and become lava when it reaches the Earth's surface.Rate this question:
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- 13.
The point on Earth's surface right above the spot where the first movement of an earthquake occurs is called the earthquake's ________.
- A.
Crater
- B.
Epicenter
- C.
Fault
- D.
Focus
Correct Answer
B. EpicenterExplanation
The point on Earth's surface right above the spot where the first movement of an earthquake occurs is called the earthquake's epicenter. The epicenter is the location on the surface directly above the focus, which is the point within the Earth where the earthquake originates. It is the epicenter that is typically used to determine the location and magnitude of an earthquake.Rate this question:
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- 14.
Where do most earthquakes occur?
- A.
Ring of Fire
- B.
California
- C.
Canada
- D.
Atlantic Ocean
Correct Answer
A. Ring of FireExplanation
Most earthquakes occur in the Ring of Fire, which is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. This area is characterized by a nearly continuous series of oceanic trenches, volcanic arcs, volcanic belts, and plate movements. The Ring of Fire is home to about 75% of the world's active volcanoes and is prone to frequent seismic activity due to the movement and collision of several tectonic plates.Rate this question:
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- 15.
Method to determine the location of the epicenter from three seismograph stations.
- A.
Moment magnitude
- B.
Triangulation
- C.
Mercalli scale
- D.
Compass circulation
Correct Answer
B. TriangulationExplanation
Triangulation is a method used to determine the location of the epicenter from three seismograph stations. It involves measuring the time it takes for seismic waves to reach each station and using this data to calculate the distance from each station to the epicenter. By drawing circles with the calculated distances as radii around each station, the intersection point of the circles represents the epicenter. Triangulation is a widely used and accurate technique in seismology for locating the epicenter of an earthquake.Rate this question:
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- 16.
Numerical scale of earthquake magnitude measured by the amplitude of the largest wave on a standardized seismosgraph.
- A.
Mercalli scale
- B.
Moses Scale
- C.
Richter scale
- D.
Rapoport scale
Correct Answer
C. Richter scaleExplanation
The Richter scale is used to measure the magnitude of an earthquake by analyzing the amplitude of the largest wave recorded on a seismograph. This scale was developed by Charles F. Richter in 1935 and is widely recognized and used by scientists and seismologists. It assigns a numerical value to the earthquake's magnitude, with each increase of one unit representing a tenfold increase in the amplitude of the seismic waves. The Richter scale provides a standardized way to compare and classify the intensity of earthquakes.Rate this question:
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- 17.
Boundary or zone where lithospheric plates separate from each other. **Use your ESRT
- A.
Transform boundary
- B.
Divergent boundary
- C.
Convergent boundary
Correct Answer
B. Divergent boundaryExplanation
A divergent boundary is a boundary or zone where lithospheric plates separate from each other. At these boundaries, the plates move away from each other, creating a gap or rift. This movement is caused by convection currents in the underlying asthenosphere. As the plates move apart, magma from the asthenosphere rises to fill the gap, creating new crust. Divergent boundaries are typically associated with the formation of mid-ocean ridges and rift valleys on land.Rate this question:
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- 18.
Boundary or zone where lithospheric plates move toward each other. **Use your ESRT
- A.
Divergent boundary
- B.
Convergent boundary
- C.
Transform boundary
Correct Answer
B. Convergent boundaryExplanation
A convergent boundary is a boundary where lithospheric plates move toward each other. This can result in the collision of plates, causing the formation of mountain ranges, volcanic activity, and earthquakes. The Earth Science Reference Tables (ESRT) provide information about plate tectonics and the different types of boundaries.Rate this question:
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- 19.
Seismology is
- A.
The study of volcanoes.
- B.
The study of global warming.
- C.
The study of earthquakes.
- D.
The study of the size of Earth
Correct Answer
C. The study of earthquakes.Explanation
Seismology is the study of earthquakes. It involves the analysis and understanding of the causes, effects, and characteristics of seismic activity, including the study of seismic waves, the measurement of ground motion, and the interpretation of data to determine the location and magnitude of earthquakes. Seismologists use various techniques and instruments to study earthquakes and their impact on the Earth's crust, as well as to assess potential risks and develop strategies for mitigating earthquake hazards.Rate this question:
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- 20.
How many layers is the Earth made of? **Use your ESRT
- A.
1
- B.
2
- C.
3
- D.
4
- E.
5
Correct Answer
D. 4Explanation
The Earth is made up of four layers: the inner core, outer core, mantle, and crust. The inner core is the solid, dense center of the Earth, while the outer core is a liquid layer surrounding the inner core. The mantle is a thick layer of semi-solid rock that lies between the crust and the outer core. Finally, the crust is the outermost layer of the Earth, which is relatively thin and made up of solid rock.Rate this question:
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- 21.
What plate is known as The Ring of Fire? **Use your ESRT
- A.
Nazca
- B.
Antarctic
- C.
Pacific
- D.
North American
- E.
Cocos
Correct Answer
C. PacificExplanation
The correct answer is Pacific because the Pacific Plate is known as The Ring of Fire. The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. This area is associated with a nearly continuous series of oceanic trenches, volcanic arcs, volcanic belts, and plate movements. The Pacific Plate is the largest tectonic plate on Earth and it encompasses the majority of the Ring of Fire.Rate this question:
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- 22.
A break in the Earth's crust along which rocks move is called __________.
- A.
An eathquake
- B.
An epicenter
- C.
A fault
- D.
A volcano
Correct Answer
C. A faultExplanation
A break in the Earth's crust along which rocks move is called a fault.Rate this question:
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- 23.
Melted rock that reaches Earth's surface is called _____________.
- A.
Crust
- B.
Iron
- C.
Lava
- D.
Magma
Correct Answer
C. LavaExplanation
Melted rock that reaches Earth's surface is called lava. This is because when rock deep within the Earth's mantle melts and rises to the surface, it is then known as lava. Lava typically flows out of volcanoes during volcanic eruptions and can be extremely hot and molten. It cools and solidifies upon contact with the atmosphere, forming igneous rocks.Rate this question:
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- 24.
What is the energy called which builds up before an earthquake is set of?
- A.
Foreshocks
- B.
Amplification
- C.
Tremors
- D.
Quakes
Correct Answer
A. ForeshocksExplanation
Foreshocks are small earthquakes that occur before a larger earthquake, serving as a warning sign. These smaller tremors are caused by the release of stress along a fault line, which gradually builds up energy before the main earthquake event. Foreshocks can help seismologists predict the likelihood and magnitude of an impending earthquake, making them an important indicator in earthquake monitoring and early warning systems. Amplification refers to the increase in ground motion during an earthquake, tremors are the shaking movements during an earthquake, and quakes is a general term for earthquakes.Rate this question:
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- 25.
An earthquake’s P-wave arrived at a seismograph station at 02 hours 40 minutes 00 seconds. The earthquake’s S-wave arrived at the same station 2 minutes later. What is the approximate distance from the seismograph station to the epicenter of the earthquake? **Must use ESRT page 11 and a piece of paper to measure
- A.
1,100 km
- B.
3,100 km
- C.
2,400 km
- D.
4,000 km
Correct Answer
A. 1,100 km -
- 26.
If an earthquake was felt 2,000 km away, when did the first P-waves arrive at this seismic station? **Must use ESRT page 11
- A.
2 minutes
- B.
4 minutes
- C.
6 minutes
- D.
8 minutes
Correct Answer
B. 4 minutesExplanation
The correct answer is 4 minutes because according to ESRT page 11, P-waves travel at an average speed of 6 km/s. Therefore, to calculate the time it takes for the P-waves to travel 2,000 km, we divide the distance by the speed: 2,000 km / 6 km/s = 333.33 seconds. Since there are 60 seconds in a minute, we divide 333.33 seconds by 60 to convert it to minutes, which gives us approximately 5.56 minutes. Rounding to the nearest minute, we get 6 minutes. However, since we are asked for the time of arrival of the first P-waves, we subtract 2 minutes (the time it takes for the S-waves to arrive after the P-waves) from 6 minutes, which gives us 4 minutes.Rate this question:
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- 27.
Please fill answer below_______
Correct Answer
N/A - 28.
List the layers of rocks in order of YOUNGEST to OLDEST. Type the letter and hit enter ______________________________
Correct Answer
A B E C
a b d e cExplanation
The given answer lists the layers of rocks in order of youngest to oldest. The letters A, B, E, and C represent the layers of rocks in the correct order. The lowercase letters a, b, d, e, and c represent additional layers of rocks that are also listed in the correct order.Rate this question:
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