forces that shape earth (unit 4)

Question 1

Force that act on rock to change to change it’s shape or volume

Answer 1

Stress

Question 2

What are the THREE kinds of stress that can occur in crust

Answer 2

Tension
Compression
Shearing

Question 3

A change in the shape of a rock caused by stress

Answer 3

Strain

Question 4

Change in rock that is not permanent

Answer 4

Elastic strain

Question 5

creates a permanent change in the shape of a rock; usually occurs when rocks are weak or hot

Answer 5

Plastic strain

Question 6

landforms created by Compression

Answer 6

mountain ranges
ocean trenches
volcanic arcs

Question 7

landforms created by Tension

Answer 7

Mid-ocean ridges

Continental rifts

Question 8

landforms created by Shearing

Answer 8

transform faults

Fault zones

Question 9

Collision between two continental plates

Answer 9

Mountain ranges

Question 10

one plate goes under another during collision forming a deep trench where the two plates meet

Answer 10

Ocean trenches

Question 11

Curved line of volcanoes that form parallel to plate boundries

Answer 11

volcanic arcs

Question 12

Tension causes oceanic crust to spread allowing hot rock from mantle to rise creating high ridges

Answer 12

Mid-ocean ridges

Question 13

When divergent boundaries occur within a continent, they cause enormous splits in the crust

Answer 13

Continental rifts

Question 14

When plates slide horizontally past each other they form a fault, or a break in the rock of the crust

Answer 14

Transform faults

Question 15

An area of many fractured pieces of crust along a large fault

Answer 15

Fault zones