WorksheetsMotions - Concept 3
Total questions: 17
Worksheet time: 6mins
What city was farthest from the earthquake based on these S-P time intervals?
Forks
Houston
Philadelphia
When determining the S-P time interval, you must ______ the numbers/times to find the distance.
subtract
add
divide
multiply
square
Pennsylvania doesn't have any volcanoes because:
the land is too flat
there's way too much water
it's not near a plate boundary
There are volcanoes, they're just dormant
The risk of Earthquakes is high along the Pacific coast of the U.S. because
there have been no earthquakes there lately
serious earthquakes are rare east of the Rocky Mountains
satellites have detected increase elevation in the ground
this is where two tectonic plates meet
The main hazard from a quietly erupting volcano is:
volcanic gases
lava flows
geysers
pyroclastic flows
Magma that is low in silica is:
thick
likely to erupt explosively
likely to erupt quietly
to sticky to flow very far
S waves arrive at a seismograph:
First
Second
What city is closest to the earthquake based on the S-P time intervals?
Houston
Forks
Philadelphia
The point beneath the Earth's surface where rock breaks under stress and triggers and earthquake is called:
the epicenter
the focus
triangulation
P-wave location
What type of volcano is shown in the picture?
Shield
Composite
Cinder Cone
Hot Spot
Earthquakes happen:
Once a century
Once a month
Once a year
Constantly
The viscosity of magma depends on its silica content and its:
Magnetism
Aa
Pahoehoe
Temperature
The volcano that formed the Hawaiian Islands is:
Active
A Hot Spot
A Shield Volcano
All of the above
P waves arrive at a seismograph
Last
First
Only if conditions allow
The process used to find the epicenter of an earthquake is called:
Echo Location
Box & Whisker
Xiphoid Process
Triangulation
The last volcano to erupt in the continental U.S. was:
Mt. Hood
Mt. Shasta
Mt. Fettsuvius
Mt. St. Helens
To find an epicenter of an earthquake, you must have ______ seismograph readings.
1
2
3
