Science

Question 1

What are Forces that acts on rocks to change its shape or volume.

Answer 1

Stress

Question 2

What adds (potential) energy to rocks.

Answer 2

Stress

Question 3

What is rocks are able to bend and stretch to a certain extent.

Answer 3

Elasticity

Question 4

What is the limit at which rocks can no longer take the stress and will break causing a fault.

Answer 4

Elastic Limit

Question 5

What pulls rocks apart at divergent boundaries.

Answer 5

Tension

Question 6

What squeezes rocks together at convergent boundaries.

Answer 6

Compression

Question 7

What causes rock on either side of a fault to slide past each other at transform boundaries.

Answer 7

Shear

Question 8

What surface along which rocks move when they pass their elastic limit and break.

Answer 8

Fault

Question 9

What is required to overcome strength of rocks and cause fault movement.

Answer 9

Tremendous force

Question 10

What is tensional force on rock (hanging wall) above the fault surface that moves downward against the rock (footwall) below the fault surface.

Answer 10

Normal fault

Question 11

What is compression force on rock ( hanging wall) above the fault surface and is forced up and over rock (footwall) below the fault surface.

Answer 11

Reverse fault

Question 12

What is shear forces on either side of the fault surface that move past each other without much up or down movement.

Answer 12

Strike-slip fault

Question 13

What is is the vibration produced by the breaking of rock.

Answer 13

Earthquake

Question 14

What result from rocks moving over, under, or past each other over fault surfaces.

Answer 14

Earthquake

Question 15

What can vibrations can range from

Answer 15

hardly noticeable to intense waves of energy.

Question 16

What are Vibrations are generated by an earthquake

Answer 16

Seismic waves

Question 17

What can Carry energy and travel through the earth

Answer 17

Seismic waves

Question 18

What is the point under Earth’s surface where energy is first released.

Answer 18

Focus

Question 19

What cause particles in rock to move back and forth in the same direction.

Answer 19

P-waves-primary waves

Question 20

What are some characteristics of p-waves-primary waves

Answer 20

Travel the fastest and can move through earth’s outer liquid core

Question 21

What are some characteristics of secondary-s-waves

Answer 21

Cause particles in rock to move at right angles, up and down or side to side, travel slower that p waves, and
cannot travel through liquid

Question 22

What are some characteristics of surface waves

Answer 22

Move rock particles in a back and forth side to side almost circular motion and most destructive type of wave

Question 23

What is is the point on Earth’s surface directly above the focus.

Answer 23

Epicenter

Question 24

What is a scientist who study earthquakes

Answer 24

Seismologists

Question 25

What is an instrument that measures and records seismic waves.

Answer 25

Seismographs

Question 26

What is an instrument that measures and records seismic waves.

Answer 26

Seismometer

Question 27

What is A chart, or graph, of a seismograph

Answer 27

Seismogram

Question 28

What are some characteristics of magnitude

Answer 28

Is the numeric measure of an earthquakes size, each one point increase in magnitude is roughly equivalent to 32 times more energy released, and the numeric scale has no limit, but is believed that 9.5 is the highest magnitude.

Question 29

What is the Richter magnitude scale:

Answer 29

Earliest scale used
-Compares the size of earthquakes

Question 30

What is the Moment Magnitude scale:

Answer 30

-Most commonly used scale
-measures the total energy an earthquake releases
-More exact than the richter scale

Question 31

What is the Modified Mercalli Scale:

Answer 31

-used to describe the intensity of a quake based on structural and geologic damage of the quake.
-The scale runs from I ( no damage) to XII (total damage)
-It is a more subjective scale