Chapter 6A-B Flashcards

(43 cards)

1
Q

An instrument that measures earthquake waves 

A

Seismometer 

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2
Q

Seismometer to Texan, earthquake, and sends a signal to a specific location notifying of an impending earthquake 

A

Early warning system

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3
Q

Put into computers to start a network of early warning system

A

accelerometer

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4
Q

Any kind of shaking measure by seismic instruments

A

Earthquakes

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5
Q

Faults slipping, volcanoes And landslides

A

Natural causes

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6
Q

Explosions mind caves, and aircraft crashes

A

Man-made causes

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7
Q

To push or pull on something

A

Force

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8
Q

A force exerted inside a material

A

Stress

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9
Q

What are the three kinds of stresses?

A

One tension pulling, two pushing compression, three tearing sheer

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10
Q

Hotter or less dense rock rises

A

Buoyant force

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11
Q

Cooler denser rock sinks

A

Gravity

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12
Q

Plates move apart

A

Divergent boundaries

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13
Q

Plates moved together

A

Convergent boundaries

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14
Q

Plate slide pass one and another in opposite direction

A

 Transformed boundaries

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15
Q

Any kind of a solid shape due to stress

A

Strain

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16
Q

Amount of strain a substance can take without breaking

A

Ductility

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17
Q

Easily fractured

A

Brittle

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18
Q

A joint or crack in a rock where the rock on both sides of the crack has been relative to each other

19
Q

 Stretchiness

20
Q

Flat surface along which there is a slip during an earthquake

21
Q

Angle of the face downward from the
Horizontal

22
Q

Can change along a fault

A

Strikes and dip

23
Q

Location certain or visible on the surface

24
Q

Below ground and out of state estimate position

A

 Dashed line

25
Move up and down
Dip slipped fault
26
Upper block drops and lower block rises
Normal fault
27
Upper block rises and lower block drops
Reverse fault
28
Reverse fault with a dip less than 45°
 Thrust fault
29
Moves horizontally
Strike slip fault
30
 Famous strike slip fault
San Andreas Fault
31
You can feel an earthquake if it is less than what
45 miles below the earths surface
32
Three kinds of forces
Compression, tension, shear
33
Three types of boundaries
Convergent, divergent, and transform
34
Three types of faults
Reverse normal and strike slip
35
Compression =
Convergent; reverse
36
Transform=
Divergent; normal
37
Shear=
Transform; stress slip
38
Smaller earthquakes fell after the initial one as crust adjusted to its new position
Aftershocks
39
Immense amount amounts of elastic energy is released
Rubber band principal
40
Instrument used to detect quakes
Seismometer
41
Seismometer and recording system
Seismograph
42
The recording of a seismograph
Seismogram
43
The height of a zigzag and graph of earth waves shows strength of a wave
Amplitude