Unit 2 Chapter 2

Question 0

When rocks break this occurs.

Answer 0

An earthquake

Question 1

The force that is used when rocks slide past each other

Answer 1

Shear force

Question 2

This is the point on the earth’s surface directly above where the earthquake originated.

Answer 2

The epicenter

Question 3

This is the type of fault that occurs due to compression force

Answer 3

A reverse fault

Question 4

When a rock or plate is stretched to its breaking point we call this what?

Answer 4

The elastic limit

Question 5

When an earthquake occurs there often several seismic activities. When there is a period of time between seismic activities we called this what?

Answer 5

Seismic gaps

Question 6

At a normal fault the plate is pulled apart and the football stays while the hanging wall falls or is moved down in relation to it. What force causes these plates to move?

Answer 6

Tension force

Question 7

At a transform boundary, two tectonic plates slide past each other horizontally. The force that causes these plates to move is called what?

Answer 7

Shear force

Question 8

This is the point with in the earth where and earthquake begins.

Answer 8

The focus

Question 9

These waves only travel along the surface of the earth and are the most destructive ways.

Answer 9

Surface waves

Question 10

These seismic waves are the fastest waves.

Answer 10

P waves

Question 11

An S wave stands for a _______wave

Answer 11

Secondary wave

Question 12

An instrument used by seismologists to measure seismic activity is called what?

Answer 12

A seismograph

Question 13

More destructive earthquakes occur at which zone? A divergent soon? Or a convergence zone

Answer 13

A convergent zone

Question 14

This fault is caused by shearing force.

Answer 14

A strike slip fault

Question 15

This is a word that refers to the amount of destruction that occurs at an earthquake; it also shows how powerful and strong and earthquake is.

Answer 15

Magnitude

Question 16

This is a word that is based on eyewitness observations and shows how much damage takes place on buildings when in earthquake occurs.

Answer 16

Intensity

Question 17

When poor spaces collapse with in the soil and makes it become more like a liquid during an earthquake we call this what?

Answer 17

Liquefaction

Question 18

This fault is caused by compression forces

Answer 18

A reverse fault

Question 19

These occur after an earthquake and are often as strong as the original earthquake.

Answer 19

Aftershocks

Question 20

A P wave stands for what?

Answer 20

Primary wave

Question 21

This type of wave will stop when it hits liquid.

Answer 21

Secondary seismic wave

Question 22

This is a boundary where the two plates pull apart from each other.

Answer 22

Divergent plate boundary

Question 23

At this boundary, plates are pushed together.

Answer 23

Convergent plate boundary

Question 24

This force pushes plates together.

Answer 24

Compression force