Section #: 19.1
Forces Within the Earth
Practice Test
1.
What are most earthquakes associated with?
SC.D.1.4.2
a.
mid-ocean ridges
b.
divergent plate boundaries
c.
plate boundaries
d.
rift valleys
Hint
2.
At what point in the graph would a rock be permanently deformed?
SC.D.1.4.2
a.
past the elastic limit
b.
at the failure point
c.
at the start of the stress
d.
at the elastic limit
Hint
3.
What does the straight part of a stress-strain graph portray?
SC.D.1.4.2
a.
elastic deformation
b.
shearing direction
c.
ductile deformation
d.
failure
Hint
4.
Which type of stress pulls a material apart?
SC.D.1.4.2
a.
tension
b.
compression
c.
shear
d.
strain
Hint
5.
__________ is the force per unit area acting on a material?
SC.D.1.4.2
a.
Stress
b.
Shear
c.
Rotation
d.
Strain
6.
Where does an earthquake originate?
SC.D.1.4.2
a.
at the focus
b.
at the P-wave
c.
at the epicenter
d.
at Earth's inner core
Hint
7.
__________ causes permanent strain.
SC.D.1.4.2
a.
Elastic deformation
b.
Compression
c.
Ductile deformation
d.
Tension
Hint
8.
Which type of fault results in horizontal shortening?
SC.D.1.4.2
a.
normal
b.
shear
c.
strike-slip
d.
reverse
Hint
9.
__________ push and pull rocks in the same direction along which the waves are traveling
SC.D.1.4.2
a.
Surface waves
b.
Secondary waves
c.
Primary waves
d.
Shear waves
Hint
