Midterm #1 TopHat Questions Flashcards
1
Q
What are energy sources of natural disasters?
A
- gravity (due to attraction between two masses)
- solar energy
2
Q
The main source of Earth’s internal energy is/are
A
- radioactive decay
3
Q
Retrofitting a hospital to better withstand ground shaking during an earthquake is considered to be
A
- mitigation
4
Q
Force per unit area is
A
- stress
- tension
5
Q
Rheology describes
A
- how a material strains under stress
- how a material deforms when subject to stress
6
Q
The lithosphere consists of both _____ and _____.
A
- crust
- uppermost
7
Q
Earthquake rupture is mostly limited to crust since
A
- the crust is cold and therefore rigid and brittle.
8
Q
oceanic crust is youngest
A
- near mid-ocean ridges.
9
Q
Earthquakes occur predominantly
A
- along plate margins (trenches and mid-ocean ridges).
10
Q
Earth’s magnetic field originates in the
A
- outer core
11
Q
Subduction zones
A
- are convergent plate boundaries
- cause volcanism due to lithosphere sinking into the mantle
- recycle oceanic lithosphere into the mantle
- host some of the world’s largest earthquakes
12
Q
Deep-focus earthquakes occur in
A
- subduction zones
13
Q
transform plate boundary are
A
- conservative
14
Q
Trench plate boundaries are
A
- convergent/under compression
15
Q
Spreading plate boundaries are
A
- divergent/under tension
