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Physical Science > Chapter 25 > Flashcards

Chapter 25 Flashcards

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Biology 101 flashcards
1
Q

System of mountains ranges on the seafloor separated by valleys

A

Mid-Ocean ridge ( MOR )

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2
Q

A long, Narrow depression called…

A

Rift Valleys

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3
Q

The Boundary where two plates collide is called….

A

Convergent Plate Boundary

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4
Q

The denser plate dives beneath the continent in a process called….

A

Subduction

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5
Q

The Boundary between two plates that are moving apart is called….

A

Divergent Plate Boundary

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6
Q

Type of boundary where plates slide horizontally past each other in opposite directions called…..

A

Transform Plate Boundary

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7
Q

EarthquakeIs the sudden movement or vibration of the ground that occurs when the rocks slip and slide along enormous cracks in Earth’s crust called faults

A

Earthquake

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8
Q

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

A

Faults

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9
Q

The Sudden release of strain energy as rock moves along a fault is called…

A

Elastic Bound

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10
Q

The point of origin for an earthquake is called….

A

Focus

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11
Q

The point on Earth’s surface directly above the focus is called….

A

Epicenter

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12
Q

Which type of plate boundaries have shallow earthquakes?

A

Divergent and transform boundaries

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13
Q

Which plate boundaries has deep earthquakes?

A

Convergent plate boundaries

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14
Q

What types of stress can be applied to rocks to cause movement?

A

Compression stress
A Tension stress
A shear stress
Torsion stress

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15
Q

What are the types of deformation that can be cause due to stress?

A

Elastic and Plastic

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16
Q

What happens to the material when elastic deformation happens ?

A

The object deforms and returns back to the original shape

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17
Q

What happen to the material when plastic when deformation happens?

A

Deforms and remains in a new shape

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18
Q

How many type of seismic waves are there?

A

3 Types of seismic

  • Primary waves
  • Secondary waves
  • Surface waves
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19
Q

Which wave moves at the fastest speed?

A

P Waves

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20
Q

What type of wave is a P wave?

A

A compression wave

21
Q

What type of material can P wave travel through?

A

Solid and liquids

22
Q

What type of wave are secondary waves?

A

Transverse

23
Q

What type of material can s waves travel through?

A

Solids

24
Q

Which wave is the most complex and damaging ?

A

Surface wave

25
Q

What are the name of the two scales that measure earthquakes?

A

Richter scale

Mercalli scale

26
Q

What does the richter scale tell us about an earthquake?

A

The amount of energy released

27
Q

What does the Mercalli scale tells us about a earthquake ?

A

The amount of damage caused

28
Q

Who came up with the Continental drift hypothesis?

A

Alfred Wegener

29
Q

What where some pieces that supported his hypothesis?

A
  1. Coastline matched like a puzzle piece
  2. he looked at large land animal fossils
  3. Mountain ranges matched up had similar rock type and age
30
Q

What was the name of the cuper cont

A

Pangaea

31
Q

Who came up with the Seafloor spreading Hypothesis?

A

Harry Hess

32
Q

What did he use to come up with the Seafloor spreading hypothesis?

A

Sonar

33
Q

Who discovered the Mid Ocean Ridge ?

A

Harry Hess

34
Q

Where can we find the youngest rock on the Seafloor?

A

Close to the MOR

35
Q

What are the three plate boundaries?

A

Convergent
Divergent
Transform

36
Q

What are the two type of crust that deal with in class

A

Oceanic crust

Continental crust

37
Q

How do convergent play boundaries move?

A

Collide together

38
Q

What land forms are created when ocean crust and continental crust converged?

A

Volcanoes

Deep Sea Trench

39
Q

Subduction happens with the which type of boundary?

A

Convergent

40
Q

What type of land forms when two oceanic crust come together ?

A

Deep sea trenches

Hot spots which create lands

41
Q

What type of land forms are created when two continental come together ?

A

Mountains

42
Q

What kind of crust must be present for Volcanic activity to occur ?

A

Oceanic crust

43
Q

How do divergent plates move?

A

They divide/ Move away from each other

44
Q

What are specific example of divergent plate boundaries?

A

MOR ( Both are oceanic crust)

East African Rift ( Both Continental )

45
Q

How do transform plates move ?

A

Slide past each other

46
Q

What a specific example of a transform plate boundaries?

A

San Andreas Fault (both Continental)

47
Q

What is a convection current?

A

!. Magma heats up, becomes less dense and rise

2. Magma cools down, becomes more dense and sinks

48
Q

What are other forces that helps in motion?

A

Slab pull
Ridge push
And friction

Physical Science (6 decks)

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