chapter 6 study guide

Question 1

definition of compression force

Answer 1

a contact force that acts to squeeze or crush a object

Question 2

definition of tension force

Answer 2

forces that act to pull a object

Question 3

definition of shear force

Answer 3

forces acting in opposite directions

Question 4

what force is most important in causing earthquakes

Answer 4

shear force

Question 5

what are the 3 different tectonic plates

Answer 5

divergent, convergent, transform

Question 6

types of faults

Answer 6

dip slip(normal/reverse) , strike slip,

Question 7

what is the largest fault

Answer 7

San Andreas fault.

Question 8

what is a richter scale

Answer 8

measures the magnitude of a earthquake

Question 9

what is a seismic wave

Answer 9

waves moving though the earth at the focus of a earthquake

Question 10

types of seismic waves

Answer 10

S waves, P waves, surface waves

Question 11

what does dip and strike mean

Answer 11

dip-angle of fault
strike- direction of fault

Question 12

definition of Trilateration

Answer 12

The process of pinpointing a location by finding the intersection of 3 overlapping circles

Question 13

what are Aftershocks

Answer 13

Secondary, smaller earthquakes that follow after a major earthquake.

Question 14

3 hazard caused by a earthquake

Answer 14

tsunami, fire, landslides

Question 15

difference between joint and fault

Answer 15

a joint is a fracture in a rock that has no displacement while a fault is a fracture in a rock that has displacement