Question 1

In the 1950s a plot of the position of the magnetic north pole through time revealed that

Accepted Answer

A) either the magnetic poles had migrated through time or the continents had moved. 
B) polar magnetization varied from pole to pole. 
C) over the past 500 million years the geographic poles changed position at least once or twice. 
D) all of the above. 
A) either the magnetic poles had migrated through time or the continents had moved. 
B) polar magnetization varied from pole to pole. 
C) over the past 500 million years the geographic poles changed position at least once or twice. 
D) all of the above.

Question 2

Compressive forces cause the crust to

Accepted Answer

A) buckle and fold,thereby shortening the crustal surface. 
B) buckle and fold,thereby lengthening the crustal surface. 
C) stretch and pull,thereby shortening the crustal surface. 
D) break and fracture,thereby lengthening the crustal surface. 
A) buckle and fold,thereby shortening the crustal surface. 
B) buckle and fold,thereby lengthening the crustal surface. 
C) stretch and pull,thereby shortening the crustal surface. 
D) break and fracture,thereby lengthening the crustal surface.

Question 3

Detailed mapping of the ocean floors revealed

Accepted Answer

A) huge mountain ranges beneath the oceans. 
B) deep trenches near some of the continents. 
C) that the oceans are equally deep at all locations. 
D) huge mountain ranges on the ocean floor,and deep trenches near some of the continents. 
A) huge mountain ranges beneath the oceans. 
B) deep trenches near some of the continents. 
C) that the oceans are equally deep at all locations. 
D) huge mountain ranges on the ocean floor,and deep trenches near some of the continents.

Question 4

The relative movement of a strike-slip fault is

Accepted Answer

A) left to right. 
B) right to left. 
C) horizontal. 
D) vertical. 
A) left to right. 
B) right to left. 
C) horizontal. 
D) vertical.

Question 5

In an undeformed sequence of rocks,the youngest rocks are found

Accepted Answer

A) at the bottom of the rock sequence. 
B) as an eroded bed. 
C) at the top of the rock sequence. 
D) in the core of an anticline. 
A) at the bottom of the rock sequence. 
B) as an eroded bed. 
C) at the top of the rock sequence. 
D) in the core of an anticline.

Question 6

The mantle can be separated into two different portions: the lower mantle and the upper mantle.The lower mantle is

Accepted Answer

A) completely solid due to extreme pressure that prevents iron-rich silica rocks from melting. 
B) composed of silly putty that flows like molasses. 
C) rigid and has no capability of flow. 
D) predominantly liquid silica. 
A) completely solid due to extreme pressure that prevents iron-rich silica rocks from melting. 
B) composed of silly putty that flows like molasses. 
C) rigid and has no capability of flow. 
D) predominantly liquid silica.

Question 7

Continental crust is

Accepted Answer

A) thinner than oceanic crust. 
B) less dense than oceanic crust. 
C) more dense than oceanic crust. 
D) thinner and more dense than oceanic crust. 
A) thinner than oceanic crust. 
B) less dense than oceanic crust. 
C) more dense than oceanic crust. 
D) thinner and more dense than oceanic crust.

Question 8

In comparison to S-waves,P-waves

Accepted Answer

A) cannot travel through solids,they only travel through fluids. 
B) are the fastest of all seismic waves and the first to register on a seismograph. 
C) are the second to register on a seismograph. 
D) all of the above 
A) cannot travel through solids,they only travel through fluids. 
B) are the fastest of all seismic waves and the first to register on a seismograph. 
C) are the second to register on a seismograph. 
D) all of the above

Question 9

The outer core is

Accepted Answer

A) rock. 
B) plastic. 
C) liquid. 
D) the source for volcanoes. 
A) rock. 
B) plastic. 
C) liquid. 
D) the source for volcanoes.

Question 10

Which one of the following is not a type of plate collision?

Accepted Answer

A) continental divergence 
B) oceanic-continental 
C) continental-continental 
D) oceanic-oceanic 
A) continental divergence 
B) oceanic-continental 
C) continental-continental 
D) oceanic-oceanic

Question 11

When rock is subjected to compressive force,it may fault.If rocks in the hanging wall are pushed up over rocks in the footwall,it is called a

Accepted Answer

A) reverse fault. 
B) strike slip fault. 
C) normal fault. 
D) none of the above 
A) reverse fault. 
B) strike slip fault. 
C) normal fault. 
D) none of the above

Question 12

Describe the theory of continental drift.

Accepted Answer

Continental drift proposed that continen

Question 13

Convergent boundaries are regions of

Accepted Answer

A) great mountain building. 
B) plate subduction. 
C) plate collision. 
D) plate collision,subduction,and mountain building. 
A) great mountain building. 
B) plate subduction. 
C) plate collision. 
D) plate collision,subduction,and mountain building.

Question 14

The thickness of Earth's crust

Accepted Answer

A) varies from 10 km under the continents to 60 km under the oceans. 
B) on average is about 10 km. 
C) on average is about 60 km. 
D) varies from 10 km under the oceans to 60 km under the continents. 
A) varies from 10 km under the continents to 60 km under the oceans. 
B) on average is about 10 km. 
C) on average is about 60 km. 
D) varies from 10 km under the oceans to 60 km under the continents.

Question 15

The moment magnitude scale measures the energy released by an earthquake.For each increase in magnitude,the energy released increases

Accepted Answer

A) ten-fold. 
B) logarithmically. 
C) by 10. 
D) 30 times. 
A) ten-fold. 
B) logarithmically. 
C) by 10. 
D) 30 times.

Question 16

The rate of seafloor spreading can be calculated by

Accepted Answer

A) the magnetic pattern generated at the ocean floor. 
B) knowing the dates for magnetic pole reversals,and the distance from the location of a known reversal site to the ocean ridge. 
C) looking at the magnetic tape recording of the ocean floor. 
D) the rate of seafloor spreading cannot be calculated. 
A) the magnetic pattern generated at the ocean floor. 
B) knowing the dates for magnetic pole reversals,and the distance from the location of a known reversal site to the ocean ridge. 
C) looking at the magnetic tape recording of the ocean floor. 
D) the rate of seafloor spreading cannot be calculated.

Question 17

The Richter magnitude scale measures an earthquake's

Accepted Answer

A) frequency. 
B) energy in terms of ground shaking. 
C) damage. 
D) all of the above 
A) frequency. 
B) energy in terms of ground shaking. 
C) damage. 
D) all of the above

Question 18

The process in which one plate bends and descends beneath another plate is called

Accepted Answer

A) subduction. 
B) seduction. 
C) segregation. 
D) sinking. 
A) subduction. 
B) seduction. 
C) segregation. 
D) sinking.

Question 19

The outer core

Accepted Answer

A) has a plastic-like flow. 
B) flows fast enough to power Earth's magnetic field. 
C) is solid as a rock. 
D) transmits S-waves. 
A) has a plastic-like flow. 
B) flows fast enough to power Earth's magnetic field. 
C) is solid as a rock. 
D) transmits S-waves.

Question 20

Convection in Earth's mantle is attributed to

Accepted Answer

A) sinking cold oceanic crust. 
B) gravity and heat flow. 
C) conduction of heat from Earth's core. 
D) temperature differences between continental and oceanic crust. 
A) sinking cold oceanic crust. 
B) gravity and heat flow. 
C) conduction of heat from Earth's core. 
D) temperature differences between continental and oceanic crust.

Exam 21: Plate Tectonics and Earths Interior

In the 1950s a plot of the position of the magnetic north pole through time revealed that

Compressive forces cause the crust to

Detailed mapping of the ocean floors revealed

The relative movement of a strike-slip fault is

In an undeformed sequence of rocks,the youngest rocks are found

The mantle can be separated into two different portions: the lower mantle and the upper mantle.The lower mantle is

Continental crust is

In comparison to S-waves,P-waves

The outer core is

Which one of the following is not a type of plate collision?

When rock is subjected to compressive force,it may fault.If rocks in the hanging wall are pushed up over rocks in the footwall,it is called a

Describe the theory of continental drift.

Convergent boundaries are regions of

The thickness of Earth's crust

The moment magnitude scale measures the energy released by an earthquake.For each increase in magnitude,the energy released increases

The rate of seafloor spreading can be calculated by

The Richter magnitude scale measures an earthquake's

The process in which one plate bends and descends beneath another plate is called

The outer core

Convection in Earth's mantle is attributed to

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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