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