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Physical Science > Chapter 25 > Flashcards

Chapter 25 Flashcards

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Biology 101 flashcards
1
Q

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

A

Mid-ocean ridge (MOR)

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2
Q

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

A

Rift Valley

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3
Q

The boundary where two plate collide is called?

A

Convergent plate Boundary

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4
Q

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

A

Subduction

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5
Q

The boundary between two plates that are moving apart called?

A

Divergent Plate Boundary

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6
Q

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

A

Transform Plate Boundary

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7
Q

The sudden movement or vibration of the ground occurs.

A

Earthquake

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8
Q

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

A

fault

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9
Q

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

A

Elastic Rebound

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10
Q

The point of origin for an earthquake called?

A

Focus

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11
Q

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

A

Epicenter

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12
Q

Who came up with the continental drift hypothesis?

A

Alford Wegener

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13
Q

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

A
  1. large land animals Fossils
  2. Coast lines mash up
  3. Mountain ranges mash up with same rock type and ages
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14
Q

What was is the name of the super continent?

A

Pangaea

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15
Q

Who came up with the Seafloor Spreading Hypothesis

A

Harry Hess

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16
Q

How did he discovered Seafloor Spreading?

A

Sonar

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17
Q

What did Hess Discovered with Sonar

A

Mid-Ocean-Ridge (MOR)

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18
Q

What are the types of plate boundaries?

A
  1. Convergent Plate Boundary/come together
  2. Divergent plate Boundary /divide
  3. Transform Plate Boundary/Transportation
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19
Q

Who do convergent plate boundary move

A

Together

20
Q

Subduction zone only happen with with type of plate boundary

A

Convergent Plate Boundary

21
Q

What two type of crust that are use with plate boundaries

A

Oceanic and Continental crust

22
Q

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

A

Volcano’s

23
Q

What will form if two oceanic crust form?

A

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

24
Q

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

A

Mountains

25
Q

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

A

Oceanic

26
Q

How do divergent plate boundaries move

A

Move away form each other or dividej.

27
Q

What is a specific example of divergent plate boundaries

A

1.(MOR)-two oceanic crust

28
Q

how do transform plate boundaries move

A

They slide past each other

29
Q

what is an specific example of a transform plate boundary

A

San Andreas Fault(Continental crust)

30
Q

What is a convection current

A
  1. Magma heats up,become leas dense,and rises

2. Magma cools,becomes more dense,and sinks

31
Q

What are three forces to contribute to plate motion

A
  1. Slab pull
  2. Ridge Push
  3. Friction
32
Q

Which plate boundaries have shallow earthquakes

A

divergent and transform plate boundaries

33
Q

Which plate boundary has deep earthquakes

A

Convergent plate boundaries

34
Q

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

A

Compression Stress
A tensions stress
Shear Stress
Torsion stress

35
Q

What are the two types of deformation

A

Elastic and plastic

36
Q

What happen to the rock or material when elastic deformation happens

A

The material goes back to its original shape

37
Q

What happen to the rock or material when plastic deformation happens

A

It takes on a new shape

38
Q

How many types of seismic waves are there

A
  1. Primary-Waves
  2. Secondary-waves
  3. Surface waves
39
Q

What type of seismic wave is the fastest

A

Primary waves

40
Q

What type of wave is a primary wave

A

Compression wave

41
Q

What type of material can p-waves pass though

A

Solids and liquids

42
Q

What kind of waves is a secondary wave

A

Transverse

43
Q

What kind of materials can a S-wave pass though

A

Solids

44
Q

Which wave is the most complex and does the most damage

A

Surface wave

45
Q

What are the two scales that helps measure earthquakes

A
  1. The Richter Scale

2. The mercalli Scale

46
Q

What does the Richter scale measure about a earthquake

A

The Amount of energy

47
Q

What does the macralli scale measure

A

The amount of viable damage

Physical Science (5 decks)

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