Plate Tectonics quiz for N(A)-Level Geography (SEAB 2246) quiz

Core, mantle, crust

Crust, core, mantle

Mantle, crust, core

Crust, mantle, core

Continental crust is thinner and denser than oceanic crust

Continental crust is thicker and less dense than oceanic crust

Both types of crust have the same thickness and density

Oceanic crust is thicker and lighter than continental crust

Heat from the Earth's formation and from radioactive decay

Energy from the Sun heating the surface

Energy from ocean tides

Friction between continents

They blow the plates like wind

Hot mantle rises, cools and sinks in loops, dragging the plates resting above

They pull the plates with magnetism

They have no effect on the plates

Plates move toward each other and one subducts

Plates slide past each other along a fault

Plates move apart and magma rises to form new crust

Plates stay completely still

A deep ocean trench

A transform fault

Fold mountains formed by collision

A mid-ocean ridge such as the Mid-Atlantic Ridge

Because the oceanic crust is less dense

Because the oceanic crust is denser and sinks beneath the lighter continental crust

Because the continental crust is thinner

Because the plates are moving apart

Friction as plates jerk past each other releases earthquakes, but no magma rises since no crust is made or destroyed

Because magma rises easily there

Because the plates move very fast and smoothly

Because the crust is too thin for earthquakes

The point on the surface directly above where the earthquake starts

The point inside the Earth where the rock first slips and energy is released

The instrument used to record earthquakes

The strength of the earthquake on the Richter scale

At the deepest part of the mantle

At the epicentre, the surface point above the focus

Far away from the epicentre

Only at transform boundaries

The visible damage and effects of an earthquake

The depth of the focus only

The energy or magnitude released by an earthquake

The number of aftershocks

Magma explodes out of a volcano

Rain seeps into the ground and shakes it

The Sun heats the crust until it cracks

Plates lock under friction, stress builds, then the rock suddenly slips and releases energy as seismic waves

Tall and steep, with thick gas-rich magma and explosive eruptions

Broad, gently sloping, with runny lava and gentle eruptions

A flat plain with no cone

Found only at transform boundaries

Epicentre, focus and fault

Magma chamber, vent and crater

Ridge, trench and rift

Mantle, core and crust only

Because their magma is thick and gas-rich

Because they form only at transform boundaries

Because their runny, low-gas lava flows far before it cools

Because they never actually erupt

A mid-ocean ridge

A rift valley

A deep ocean trench with subduction

Fold mountains such as the Himalayas