Chapter 25

Question 1

Hess discovered a system of mountain ranges on the seafloor separated by the valleys. which he called?

Answer 1

Mid-ocean ridge (MOR)

Question 2

A long narrow depression that forms between peak along the mid-ocean ridge. Which is called?

Answer 2

Rift Valley

Question 3

The boundary where two plate collide is called?

Answer 3

Convergent plate Boundary

Question 4

When a thick and buoyant continental plate meet a thin and dense oceanic plate?

Answer 4

Subduction

Question 5

The boundary between two plates that are moving apart called?

Answer 5

Divergent Plate Boundary

Question 6

This type of boundary where plates slide horizontally past each other in opposites is called?

Answer 6

Transform Plate Boundary

Question 7

The sudden movement or vibration of the ground occurs.

Answer 7

Earthquake

Question 8

A crack in Earth’s crust along which rock has moved

Answer 8

fault

Question 9

This sudden release of strain energy and moves along a fault is called?

Answer 9

Elastic Rebound

Question 10

The point of origin for an earthquake called?

Answer 10

Focus

Question 11

The point on Earth’s surface directly above the focus called?

Answer 11

Epicenter

Question 12

Who came up with the continental drift hypothesis?

Answer 12

Alford Wegener

Question 13

What are peaces of evidence that back up Alford Wegener Evidence?

Answer 13

1. large land animals Fossils
2. Coast lines mash up
3. Mountain ranges mash up with same rock type and ages

Question 14

What was is the name of the super continent?

Answer 14

Pangaea

Question 15

Who came up with the Seafloor Spreading Hypothesis

Answer 15

Harry Hess

Question 16

How did he discovered Seafloor Spreading?

Answer 16

Sonar

Question 17

What did Hess Discovered with Sonar

Answer 17

Mid-Ocean-Ridge (MOR)

Question 18

What are the types of plate boundaries?

Answer 18

1. Convergent Plate Boundary/come together
2. Divergent plate Boundary /divide
3. Transform Plate Boundary/Transportation

Question 19

Who do convergent plate boundary move

Answer 19

Together

Question 20

Subduction zone only happen with with type of plate boundary

Answer 20

Convergent Plate Boundary

Question 21

What two type of crust that are use with plate boundaries

Answer 21

Oceanic and Continental crust

Question 22

IF we have oceanic Crust and continental crust merge what will form?

Answer 22

Volcano’s

Question 23

What will form if two oceanic crust form?

Answer 23

Deep sea trench or hot spots that create Chain of islands.( or vocanic Islands)

Question 24

What type of land form is create if to continental crust come together.

Answer 24

Mountains

Question 25

What type of crust be present to have a volcanic activity to occur?

Answer 25

Oceanic

Question 26

How do divergent plate boundaries move

Answer 26

Move away form each other or dividej.

Question 27

What is a specific example of divergent plate boundaries

Answer 27

1.(MOR)-two oceanic crust

Question 28

how do transform plate boundaries move

Answer 28

They slide past each other

Question 29

what is an specific example of a transform plate boundary

Answer 29

San Andreas Fault(Continental crust)

Question 30

What is a convection current

Answer 30

1. Magma heats up,become leas dense,and rises | 2. Magma cools,becomes more dense,and sinks

Question 31

What are three forces to contribute to plate motion

Answer 31

1. Slab pull 2. Ridge Push 3. Friction

Question 32

Which plate boundaries have shallow earthquakes

Answer 32

divergent and transform plate boundaries

Question 33

Which plate boundary has deep earthquakes

Answer 33

Convergent plate boundaries

Question 34

What are the types of stress that can act upon rocks movement

Answer 34

Compression Stress A tensions stress Shear Stress Torsion stress

Question 35

What are the two types of deformation

Answer 35

Elastic and plastic

Question 36

What happen to the rock or material when elastic deformation happens

Answer 36

The material goes back to its original shape

Question 37

What happen to the rock or material when plastic deformation happens

Answer 37

It takes on a new shape

Question 38

How many types of seismic waves are there

Answer 38

1. Primary-Waves 2. Secondary-waves 3. Surface waves

Question 39

What type of seismic wave is the fastest

Answer 39

Primary waves

Question 40

What type of wave is a primary wave

Answer 40

Compression wave

Question 41

What type of material can p-waves pass though

Answer 41

Solids and liquids

Question 42

What kind of waves is a secondary wave

Answer 42

Transverse

Question 43

What kind of materials can a S-wave pass though

Answer 43

Solids

Question 44

Which wave is the most complex and does the most damage

Answer 44

Surface wave

Question 45

What are the two scales that helps measure earthquakes

Answer 45

1. The Richter Scale | 2. The mercalli Scale

Question 46

What does the Richter scale measure about a earthquake

Answer 46

The Amount of energy

Question 47

What does the macralli scale measure

Answer 47

The amount of viable damage