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Physical Science > Ch 25 > Flashcards

Ch 25 Flashcards

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Biology 101 flashcards
1
Q

Mid-Ocean Ridge

A

Hess discovered system of mountain rages on the seafloor separated by valleys.

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2
Q

Rift Valley

A

A long, narrow depression.

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3
Q

Convergent Plate Boundary

A

The boundary where two plates collide.

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4
Q

Subduction

A

When a denser plate dives beneath a less dense plate.

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5
Q

Divergent Plate Boundary

A

Two plates move along a mid-ocean ridge.

Two moving plates apart

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6
Q

Transform Plate Boundary

A

Plates slide horizontally past each other in the opposite direction

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7
Q

Who came up with the Continental drift hypothesis.

A

Alfred Wegener

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8
Q

What were

A

1) Fossils(Large Land Animal Fossils)
2) Coast Line Matched Up Like Puzzle Pieces
3) Mountain Ranges Matched Up With Same Rock Types and Ages

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9
Q

What was the name of the Super Continent

A

Pangia

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10
Q

Who came up with the Sea Floor Hypothesis

A

Harry Hess

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11
Q

How did he discover the Sea Floor Spreading Hypothesis

A

Sonar

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12
Q

What are the types of Plate Boundaries

A

Divergent boundary, Convergent boundary, Transform boundary

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13
Q

How do Convergent Boundaries move.

A

They are Together

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14
Q

Seduction Zones only happen with what type boundaries.

A

Convergent

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15
Q

What are two types of crust

A
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16
Q

Earthquake

A

When a tectonic plate moves in Earths crust.

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17
Q

How do Divergent Plate Boundary’s move.

A

They divide ( They move apart)

18
Q

What are some examples of Divergent Plate Boundary’s.

A

1) MOR (Mid Ocean Ridge)- 2 Oceanic Crust

2) East African Rift- ( 2 Continental Crust )

19
Q

How do Transformed Boundary’s move.

A

They Slide Passed Each other.

20
Q

What is a specific example of a Transform Boundary.

A

San Andres Fault (Continental Crust)

21
Q

What is a Convection Current.

A

1) Magma heats up, becomes less dense and rises.

2) Magma cools down, and is more dense and sinks.

22
Q

Fault

A

Responsibility for an accident or misfortune

crack in the earths crust.

23
Q

Elastic Rebound

A

What happens to the crustal martial on either side of a fault during earthquake.

24
Q

Focus

A

The center of interest or activity

25
Q

Epicenter

A

The point on the Earths surface directly above a hypocenter or center

26
Q

What plate boundary’s have sallow Earthquakes.

A

Divergent and Transform

27
Q

What plate boundary’s have deep Earthquakes.

A

Convergent plate boundary’s

28
Q

What are the types of stress that can apply to cause rock movement.

A

1) compression
2) tension
3) sheer
4) torsion

29
Q

What are the 2 types of deformation.

A

1) Elastic

2) Plastic

30
Q

What occurs to the rock/material when the Elastic Deformation happens.

A

The material goes back to its original shape.

31
Q

What occurs to the rock/material when the Plastic Deformation happens.

A

It takes on a new shape.

32
Q

How many types of seismic waves are there.

A

1) Primary
2) Secondary
3) Surface Waves

33
Q

What type of seismic Wave is the fastest.

A

P Wave

Primary Wave

34
Q

What type of Wave is a Primary Wave.

A

It is a compression Wave.

35
Q

What type of materials can P Wave pass through.

A

Solids and Liquids.

36
Q

What type of Wave is a S Wave.

A

Transverse.

37
Q

What type of materials can a S Wave Pass through.

A

Only Solids.

38
Q

Which Wave is the most Damage.

A

Surface Waves.

39
Q

What are the 2 scales that help meauiser Earthquakes.

A

Richter Scale

Mercalli Scale

40
Q

What does the Richter scale measure in a Earthquake.

A

The amount of Energy Realesed.

41
Q

What does the Mercalli scale measure

A

Amount of measurable damage.

Physical Science (8 decks)

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