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Tectonic Plates Flashcards | StudBud
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Tectonic Plates
Tectonic Plates
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Tectonic Plates review
Flashcards
32 cards
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Practice quiz
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Questions
32
Answers
1
A trench is most likely to form when what happens?
a less dense plate moves under a more dense plate
a more dense plate moves under a less dense plate
two plates of the same density pull apart
2
When an oceanic plate and a continental plate converge, what is generated above sea level?
mountain ranges
landslides
tsunamis
3
When two tectonic plates slide past each other:
convergent boundaries
transform boundaries
divergent boundaries
4
Pangaea is described as what?
how the Earth's plates were once one land mass
Africa and South America
the 7 continents today
5
A deep valley that forms along a subduction zone
an earthquake
a trench
a volcano
6
At divergent plate boundaries, what is likely to occur when the continental crust widens?
tsunamis
earthquakes
volcanoes
7
When two continental plates converge or come together, what is likely to form?
mountain
tsunami
ridge
8
What type of currents help move the tectonic plates?
thermal
conduction
convection
9
The crust beneath the oceans is more dense than the crust beneath the continents.
False
True
10
Most of the tectonic plates are named after what?
the oceans around them
the continents that sit on them
the presidents of the countries
11
When one plate goes under the other, it is called what?
divergent
transform
subduction
12
Continental crust is best described as...
thin and dense
thick and most dense
thick and less dense
13
Where tectonic plates diverge, what land form will most likely form?
rift valley
coral reef
beach
14
When two plates move away from each other--
divergent boundaries
convergent boundaries
transform boundaries
15
New crust is formed when molten rock comes to the surface and is cooled.
True
False
16
When plates transform, what is most likely to occur?
mountains are formed
an earthquake
volcanic island is formed
17
The tectonic plates of the lithosphere are more dense than the asthenosphere
True
False
18
Major geological event that occurs when plates shift suddenly and release stored energy:
divergent boundaries
earthquakes
volcanic eruptions
19
Huge pieces of lithosphere that slowly move on the asthenosphere and are rigid and solid.
convergent plates
crustal moving plates
tectonic plates
20
When the Pacific Plate and the Australian Plate transform or slip, what will occur?
mountain
earthquake
volcano
21
Which geological feature is most likely formed when tectonic plates pull away from each other?
ridge
mountain
plateau
22
When two tectonic plates slip past each other, what boundary does it represent?
transform
divergent
convergent
23
One plate is denser than another and is forced below as the two plates converge:
subduction
divergent boundaries
spreading ridges
24
The lithosphere is divided into
subduction zones
tectonic plates
convection currents
25
The asthenosphere is broken up into seven major tectonic plates.
False
True
26
The San Andreas Fault in California is an example of what type of plate boundary movement?
divergent
convergent
transform
27
Oceanic crust is thinner and more dense than continental crust.
True
False
28
An ocean basin is formed when what happens?
one plate goes under the other
two plates come together
two plates pull apart
29
When two tectonic plates interact, what can be caused?
tsunamis and storms
earthquakes and volcanoes
beach erosion and tornadoes
30
Which plate boundary consists of pates moving toward each other?
divergent
convergent
transform
31
When two plates collide, what boundary does it represent?
transform
convergent
divergent
32
At tectonic plate boundaries, these tend to occur:
hurricanes
tornadoes
earthquakes
