WorksheetsUnit 4: Plate Tectonics
Total questions: 30
Worksheet time: 30mins
Name
Class
Date
1.
What is the name given by Wegener to the supercontinent he proposed existed before the current continents? (2.1.1)
a)
Pangaea
b)
Panamerica
c)
Euroamerica
d)
Atlantis
2.
The fit of the coastlines of which of the following continents led people to suggest that the continents had drifted over time? (2.1.1)
a)
South America & Africa
b)
North America & Africa
c)
North & South America
d)
Europe & North America
3.
Which one of the following was NOT used as support of Wegener’s continental drift hypothesis? (2.1.1)
a)
Current Climates
b)
fits of contiental coasts
c)
rock formation
d)
fossil evidence
4.
In addition to mantle convection, which of the following are thought to cause plate movement? (2.1.1)
a)
Slab-Pull and Ridge Push
b)
Strike-slip & thrust
c)
tension & compression
d)
Normal & Reverse
5.
Most of Earth’s earthquakes, volcanoes, and mountain
a)
at plate boundaries
b)
at volcanic arcs
c)
in the center of the contients
d)
in the himalayas
6.
Which of the following mountain ranges was NOT the result of continental-continental convergence?
a)
Appalachians
b)
Himalayas
c)
Andes
d)
Alps
7.
What is the type of plate boundary where 2 plates move together, causing one of the slaps of lithosphere to descend into the mantle beneath an overriding plate, often forming volcanic arcs?
a)
Oceanic-Continental Convergent
b)
Continental-Continental Convergent
8.
At what type of boundary do plates move apart, resulting in the upwelling of material from the mantle to create new seafloor?
a)
Oceanic Divergent
b)
Tansform Fault
9.
Complex mountain systems such as the Himalayas are the result of:
a)
Continental-Continental Convergence
b)
Hot spots
c)
Continental volcanic arcs
10.
All of the following may cause volcanic eruptions except
a)
Divergent boundaries releasing built up pressure, liquefying magma and causing it to rise to the surface.
b)
Reverse faults, which can allow the escape of magma as they release their energy.
11.
Figure PT-1 is an illustration of ___________________, which occurs beneath tectonic plates and causes them to move
a)
Convection Currents
b)
Ring of Fire
c)
Osmosis
12.
All of the following are effects of volcanic eruptions except
a)
Emission of toxic gases called a pyroclastic flow.<br /><br />
b)
New islands created by the repeated cooling lf lava over time. <br />
c)
Rapid movement of mud and other materials known as lahar.<br />
d)
Subduction of ocean plates, leading to the destruction of lithosphere.
13.
Zone of frequent earthquakes and volcanic eruptions that encircles the basin of the Pacific Ocean is known as the ____________________.
a)
Twilight Zone
b)
Ring of Fire
c)
Oceanic Zone
d)
Divergent Zone
14.
What type of plate boundary is illustrated in Figure 9-1?
a)
Divergent Boundary
b)
Convergent oceanic-oceanic boundary
c)
Transform boundary
d)
Convergent oceanic-continental boundary
15.
What process is illustrated by the area labeled G in Figure 9-1.
a)
Subduction
b)
Rifting
c)
Continental Drift
d)
Seafloor spreading
16.
The layer of the earth, seen in Figure 9-1 as D, that is below the floating plates of the lithosphere is the:
a)
Atmosphere
b)
Lithosphere
c)
Asthenosphere
d)
Hydrosphere
17.
How are earthquakes triggered?
a)
Elastic rebound of rocks along a fault line
b)
release of heat
c)
richter scale
d)
frictional heating of rocks along a fault line
18.
What is the primary cause for earthquake activity in California?
a)
Plates grinding past each other along fault lines. <br />
b)
The lowering of aquifer levels.<br />
c)
Mining activity during the nineteenth century
d)
The interaction of tides with the coast.
19.
According to the earthquake diagram above, what does point A represent?
a)
Focus
b)
Fault Line
c)
Divergent Boundary
d)
Epicenter
20.
A fault is ________.
a)
another name for an earthquake
b)
The place on Earth's surface where structures move during an earthquake
c)
A fracture in the Earth where movement has occurred.
d)
A place on Earth where earthquakes cannot occur.
21.
When an earthquake occurs, energy radiates in all directions from its source, which is called the ____.
a)
Seismic Center
b)
Focus
c)
Epicenter
d)
Fault
22.
How many seismographs sites are required to locate the epicenter of an earthquake?
a)
1
b)
2
c)
3
d)
it doesn't matter; all readings are the same
23.
What are the smaller earthquakes called, which are generated by the continued movement of plates and other materials after the main shock?
a)
Body waves
b)
Foreshocks
c)
Surface waves
d)
Aftershocks
24.
What would be most effective in minimizing the potential damage caused by an earthquake?
a)
building structures that withstand ground vibrations
b)
increasing the amount of concrete during road building
c)
installing sirens in areas prone to earthquakes
25.
What type of fault is formed at divergent plate boundaries? <br />
a)
Normal Fault
b)
Reverse Fault
c)
Strike-slip fault
26.
What type of fault is formed at transform plate boundaries?
a)
Normal Fault
b)
Reverse Fault
c)
Strike-slip fault
27.
What type of fault is formed at convergent plate boundaries?
a)
Normal Fault
b)
Reverse Fault
c)
Strike-slip fault
28.
What type of forces form strike-slip faults?
a)
Compressional forces
b)
Tensional forces
c)
Shear forces
29.
What type of forces form normal faults?
a)
Compressional forces
b)
Tensional forces
c)
Shear forces
30.
What type of forces form thrust faults?
a)
Compressional forces
b)
Tensional forces
c)
Shear forces
100 %
