Earthquakes And Volcanos Quiz Study

Question 0

S-waves…

Answer 0

• Have a medium speed
• Cause medium damage
• Can pass through solids only
• Originate from focus

Question 1

P-wave…

Answer 1

• Are the quickest
• Are the least destructive
• Are able to pass through solids, liquids, and gases
• Start at the focus

Question 2

Surface waves…

Answer 2

• Are the slowest of the three waves
• Are the most destructive
• Pass through the surface only
• Originate from the epicenter

Question 3

Focus

Answer 3

The underground origin of the earthquake that is in the boundary

Question 4

Epicenter

Answer 4

The point on the surface that is exactly above the focus

Question 5

Tsunami

Answer 5

A large wave created when the plate underneath the other at a convergent boundary moves upward suddenly sending a bubble of water in all directions

Question 6

Seismic wave

Answer 6

Pulses of energy let out by the earthquake

Question 7

Seismograph

Answer 7

A MACHINE that records motion of Earths crust

Question 8

Seismogram

Answer 8

The paper that seismograph records onto… This is the data

Question 9

Richter scale

Answer 9

Number system used to describe the thrust of the ground throughout an earthquake

Question 10

Magma

Answer 10

Liquid rock within the Earth

Question 11

Lava

Answer 11

Liquid rock that is flowing on the surface

Question 12

Volcanic dust

Answer 12

The rock particle blown out of a volcano

Question 13

Volcanic ash

Answer 13

Rock, minerals, and volcanic glass made by explosive eruptions by shattering rocks

Question 14

Cinder cone

Answer 14

A steep conical hill of volcanic fragments that accumulate around a vent. They form by violent eruptions

Question 15

Composite

Answer 15

Steep slopes built by alternating quiet eruptions of fluid lava

Question 16

Shield volcano

Answer 16

Broad gentle slopes built by quiet eruptions of fluid lava, and often large in size

Question 17

Volcanic bomb

Answer 17

Lava fragments that were ejected partially molten

Question 18

Cinder

Answer 18

Small volcanic bombs, or little partially molten lava fragments that were ejected from the volcano

Question 19

P-s lag time

Answer 19

The time from when the p-wave starts until the time the s-wave starts

Question 20

How do you find the epicenter of the earthquake

Answer 20

1. Use three seismograms to find lag time
2. Use graphs to turn lag times into distances
3. Set compasses to distance using the map scale
4. Draw a circle around the city the EQ was recorded at… Repeat 2 more times
5. The EQ is where all of the circles intersect each other

Question 21

Crater

Answer 21

A funnel shaped pit at the top of a volcano

Question 22

Caldera

Answer 22

A huge crater. With collapsed sides

Question 23

Ring of fire

Answer 23

A ring around the pacific ocean where there are a lot of earthquakes and volcanos

Question 24

Mid-Atlantic Ridge

Answer 24

A divergent boundary that is the largest mountain chain separatingthe North American and Eurasian plates

Question 25

Viscosity

Answer 25

The resistance of a liquid to flowing

Question 26

What is the viscosity of the different types of volcanos?

Answer 26

Shield: low
Cinder cone: high
Composite: alternating

Question 27

What is the runniness of the different types of volcanos?

Answer 27

Shield: high
Cinder cone: very low
Composite: alternating

Question 28

What is the force of eruptions of the different types of volcanos?

Answer 28

Shield: low
Cinder cone: high
Composite: alternating

Question 29

What is the silica content of the different types of volcanos?

Answer 29

Shield: low
Cinder cone: high
Composite: alternating

Question 30

Will the eruptions of the different types of volcanos likely have ash

Answer 30

Shield: no
Cinder cone: yes
Composite: yes