Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

science chap 11

eathquakes

QuestionAnswer
1.Plates often come together at a reverse fault? True
.Plates often come together at a strike slip fault? False
2.Rocks don't reach their elastic limit when stress and earth's crust becomes so great and an earthquake occurs? False
Rocks reach their elastic limit when stress in earth's crust becomes so great and earthquakes occus? True
3.Scientists use information from at least three seismographs to locate a earthquakes epicenter? True
Scientists use information from at least four seismographs to locate a earthquakes epicenter? False
4.Scientists have not been able to determine the structure of Earth's interior by noteing the change in the speed and path of seismic waves? False
Scientists are able to determine the structure of Earth's interior by noteing the change in the speed and path of seismic waves? True
5.The Richter scale is used by seimotologists to describe the magnitude of earthquakes? True
The Richter scale is used by seismographs to describe the magnitude of earthquakes? False
6.By placing heavy items on lower shelves you are making you home more seismic safe? True
By placing heavy items on top shelves you are making your home more seismic safe? False
7.San Andreas fault is not a strike-slip fault? False
San Andreas fault is a strike-slip fault? True
8.Secondary waves move through earth by causing particles in rocks to vibrate at right angles to the direction of the waves? True
Secondary waves move through earth by causing particles in rocks to vibrate at a 20 degree angle? False
9.Earthquake surface waves are not very destructive? False
Earthquake surface waves are the most destructive? True
10.The Epicenter is the radius of the circle siesmotologists draw on a map that is not equal to the distance from a station to the earthquake? False
The Epicenter is the radius of the circle seismotologists draw on a map that is equal to the distance from a station to the earthquake? True
11.An earthquake with a magnitude of 6.5 releases about 30 times as much energy as an earthquake that registers 5.5 on the richter scale? True
An earthquake with a magnitude of 7.5 releases about 20 times as much energy as an earthquake that registers 5.5 richter scale? False
12.Secondary waves keep going when they hit the liquid outer core and pass through the liquid? False
Secondary waves are stopped when the hit the liquid outer core and do not pass the liquid? True
13.Surface waves are the fastest seismic waves? False
Surface waves are the slowest seismic waves? True
14.Shaking from a earthquake can cause wet soil to be more liquid? True
Shaking from an earthquake can cause wet soil to dry up? False
15.The first waves to arrive at a seismograph station are primary waves? True
The last waves to arrive at a seismograph station are primary waves? False
16.An earthquake occurs when rocks break because of wind and the energy is released? False
An earthquake occurs when rocks break because of wind and the energy is released True
17.Moho discontinuity is the boundary between the lower mantle and the crust? False
Moho discontinuity is the boundary between the upper mantle and crust? True
18.The area where no seismic waves are 18.detected after they are released by an earthquake -shadow zone
19.the outermost layer of the earth- lithosphere
20.The farther apart primary,secondary ,and surface waves arrive ,the farther away the epicenter is? True
The less farther apart primary ,secondary,and surface waves arrive,the farther away the epicenter is? False
21.Secondary waves move through earth ,causing particles in rocks to move back and forth in the same direction? False
Primary waves move through earth .causing particles in rocks to move back and forth in the same direction? True
22.Tension creates strike-slip faults? False
Tension creates normal faults? True
23.Compression forces are present where earth's plates come together True
Compression forces aren't present where earth's plates come together? False
24.Rocks are subject to the force of tension where earth's plates spread apart? True
Rocks are subject to the force of tension where earth's plates come together? False
25.At a reverse fault , the rocks above the fault surface are down and over the rocks below the fault surface? False
At a reverse fault ,the rocks above the fault surface are forced up and over the rocks below the fault surface? True
Created by: Brooklyn12