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Earthquakes (6th Grade)  

created by betteker on 7 Dec 12, enabled by Lou
Hard level (60% of success)    30 questions - 3 189 players
Earthquake Causes and Terms
 
1
In earthquake terminology, how is a focus described?
   
   
   
2
What are the different kinds of seismic waves?
   
   
   
3
How can the epicenter of an earthquake be characterized?
   
   
   
4
How does the energy of an earthquake travel through the Earth?
   
   
   
5
________ carry the energy of an earthquake away from the focus.
   
   
   
6
When considering the three types of seismic waves, which waves move more slowly than their counterparts yet produce the most severe ground movements?
   
   
   
7
These type of waves compress and expand the ground like an accordion.
   
   
   
8
Which waves vibrate from side to side and up and down?
   
   
   
9
When P and S waves reach the surface of the Earth, some are transformed into surface waves.
   
   
   
10
What instrument is used to measure and record the vibrations of seismic waves?
   
   
   
11
An earthquake's ___________ is a measurement of its strength based on seismic waves and movement along faults.
   
   
   
12
How many rating scales are used to measure earthquakes?
   
   
   
13
This rating scale rates earthquakes according to the size of seismic waves as measured by a seismograph.
   
   
   
14
What earthquake rating scale rates earthquakes by describing their effects on people, buildings, and the land surface in a given location?
   
   
   
15
This scale rates earthquakes by estimating the total energy released.
   
   
   
16
Which earthquake rating scale can be used to rate earthquakes of all sizes, near or far?
   
   
   
17
Rank the seismic waves in order of appearance when an earthquake first occurs as measured by a seismograph.
   
   
   
18
When an earthquake strikes, the farther away the epicenter is, the greater the difference between the two arrival times of P and S waves.
   
   
   
19
Typically, three different seismograph stations are used to plot circles on a map with each circle showing the distance from one station to all the points where the epicenter could be.
   
   
   
20
The time difference for the arrival of P and S waves at a seismograph tells scientists what information?
   
   
   
21
What state has the most earthquakes and the strongest earthquakes?
   
   
   
22
An earthquake can be defined as the sudden shaking of the __________.
   
   
   
23
The earth's crust may at first bend and when the stress force exceeds the strength of the rock, it changes and breaks. The process of breaking results in seismic waves.
   
   
   
24
What are the three main causes of earthquakes?
   
   
   
25
The break in the Earth's crust where slabs of crust slip past each other is called a _______.
   
   
   
26
What is the point beneath the Earth's crust where rocks first break under stress causing an earthquake?
   
   
   
27
Seismic waves are best described as :
   
   
   
28
Which seismic waves make the ground roll like ocean waves causing buildings to sway from side to side?
   
   
   
29
The most likely causes of volcanoes and earthquakes are :
   
   
   
30
Which seismic waves are the most destructive?
   
   
   
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Goooooooooooooooo QUIZ



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