Lesson 3: Plate Boundaries

Question 1

These either push tectonic plates toward one another or
pull them apart.

Answer 1

Driving Forces

Question 2

These act against the driving forces of plate tectonics.

Answer 2

Resisting Forces

Question 3

Is caused by the rising heat from the core toward the mantle.

Answer 3

Mantle Convection

Question 4

It occurs when a subducting slab sinks into the mantle because of a difference in temperature.

Answer 4

Slab Pull

Question 5

It occurs when the lithosphere is pushed up by the asthenosphere
because of convection currents from the mantle.

Answer 5

Ridge Push

Question 6

happens between two colliding plates, one subducting underneath the other, whereby convection currents in the upper mantle suck both plates down.

Answer 6

Slab Suction

Question 7

It is the frictional force due to the
opposing movement of plates moving past one another between two spreading centers.

Answer 7

Transform Fault Resistance

Question 8

It occurs when a heavy plate is pulled into the mantle but resists subduction because of friction.

Answer 8

Collisional Resistance

Question 9

It is the force that resists all forces associated with plate movement in subduction zones.

Answer 9

Slab Resistance

Question 10

Composed of many independent massive slabs of solid rocks called

Answer 10

Plates

Question 11

Is where two or more plates meet

Answer 11

Plate Boundaries

Question 12

Occurs when two plates move away from each other.

Answer 12

Divergent

Question 13

New ocean floor

Answer 13

Divergent

Question 14

Mid -oceanic ridges

Answer 14

Divergent

Question 15

Rift valleys

Answer 15

Divergent

Question 16

Occurs when two plates move toward each other and form

Answer 16

Convergent

Question 17

if one plate moves underneath the other.

Answer 17

Subduction Zone

Question 18

if the two plates simply collide or compress.

Answer 18

Orogenic Belt

Question 19

The plates slide against one another in opposite directions

Answer 19

Transform Fault Boundary