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SCI 7 Earthquakes Pt I

Total questions: 40

Worksheet time: 33mins

Name
Class
Date
1.
The epicenter of an earthquake is
a)
The point below the surface where rock begins to break and the first motion occurs
b)
The seismic station closest to the earthquake
c)
The place where the greatest damage occurs
d)
The point on the surface directly above the focus
2.
Which wave travels fastest, always being the first detected by seismic stations?
a)
P waves
b)
S waves
c)
Surface Waves
d)
Fans doing "the wave" at Comerica Park
3.

Using the Moment Magnitude Scale (or Richter Scale), approximately how much more energy is released in a magnitude 6 earthquake compared to magnitude 5 quake?

a)
1x 
b)
32x 
c)
100x 
d)
14x
4.
Earthquakes happen every day. Most are too small for humans to notice.
a)
True
b)
False
5.
This is the area beneath the Earth's surface where the earthquake actually occurs.
a)
epicenter
b)
focus
c)
fault line
d)
tectonic plate
6.
The printed record of a seismic wave is a 
a)
Seismograph
b)
Seismogram
c)
Seismometer
d)
Richter scale
7.
Most earthquakes happen along a _________________. 
a)

coastline

b)

fault boundary

c)

mountain range

d)
school district boundary
8.
What are the waves called that come from an earthquake?
a)
Thunder
b)
Seismic 
c)
Surfing 
d)
Cosmic
9.
What are the waves called that come from an earthquake?
a)
Thunder
b)
Seismic 
c)
Surfing 
d)
Cosmic
10.

What are vibrations caused by the sudden movement of rocks and release of energy from this movement occurs called? These occur many times, every day on Earth!

a)

earthquakes

b)

volcanoes

c)

faults

d)

plate tectonics

11.
The most destructive wave of an earthquake is . . . .
a)
P wave
b)
Surface wave
c)
S wave
d)
Tsunami
12.
a)
normal fault
b)
reverse fault
c)
strike-slip fault
d)

mom's fault

13.

Which Plate Boundary does the picture illustrate?

a)

Divergent Boundary

b)

Transform Boundary

c)

Convergent Boundary

d)

Supersonic

14.

What type of fault is this?

a)

Normal

b)

Reverse

c)

Strike-slip

d)

Arby's Fault

15.

P waves and S waves are both types of ___ waves.

a)

Body

b)

Surface

c)

Hand

d)

Surfing

16.

This type of fault is....

a)

normal fault

b)

reverse fault

c)

strike-slip fault

d)

teacher's fault

17.

The change in the shape of rock in response to stress is called:

a)

seismology

b)

deformation

c)

seismic waves

d)

elastic rebound

18.

The sudden return of elastically deformed rock to its undeformed shape is called

a)

deformation

b)

elastic rebound

c)

seismic waves

d)

seismology

19.

What type of seismic wave causes rock particles to move in an "accordion- like" motion?

a)

S wave

b)

P wave

c)

seismic wave

d)

tectonic plates

e)

Holla waves

20.

Someone who studies earthquakes is known as a:

a)

Seismogram

b)

Richter Scale

c)

Seismologist

d)

Seismology

21.

Which body waves cause particles of rock material to move at right angles to the direction in which the waves are traveling?

a)

Body Waves

b)

P Waves

c)

S Waves

d)

Surface Waves

22.

What is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption?

a)

Aftershock

b)

Liquefaction

c)

Seismic Gap

d)

Tsunami

23.

An instrument that detects and measures earthquakes is a

a)

seismogram

b)

focus seismic map

c)

focus

d)

seismograph

24.
What is the measure of the amount of energy released in an earthquake?
a)
Earthquake
b)
Epicenter
c)
Magnitude
d)
Seismogram
25.
P Waves can move through which of the following?
a)
Gas
b)
Liquid
c)
Solid
d)
All of these
26.
S Waves can move through which of the following?
a)
Gas
b)
Liquid
c)
Solid
d)
All of these
27.
What is a smaller earthquake that follows a larger earthquake?
a)
Aftershock
b)
Liquefaction
c)
Seismic Gap
d)
Tsunami
28.

What is the minimum number of seismograph stations needed to locate an earthquake epicenter?

a)

1

b)

2

c)

3

d)

5

29.

S-waves can move through which of the following?

a)

Gas

b)

Liquid

c)

Solid

d)

All of these

30.

Which city is closest to the epicenter?

a)

A

b)

B

c)

C

31.
The farther a seismic station is from an earthquake, a person will notice that  the time between P and S waves
a)
Increases
b)
Decreases
c)
Same
32.

What are P waves?

a)

Waves that shake particles at right angles to the waves’ direction of travel

b)

Push-pull waves that push (or compress) and pull (or expand) particles in the direction the waves travel

c)

Surface waves that cause the most destruction

d)

Waves that only occur in the ocean

33.

What is a seismic gap?

a)

An area with frequent earthquake activity

b)

An area along a fault with no recent earthquakes

c)

A type of earthquake-resistant structure

d)

A wave formed when the ocean floor shifts

34.

Which hypothesis explains how most earthquakes are produced?

a)

the volcanic eruption theory

b)

the elastic rebound hypothesis

c)

the tidal force theory

d)

the seismograph theory

35.

What are the two main types of seismic waves?

a)

surface waves and magnetic waves

b)

body waves and surface waves

c)

P waves and S waves

d)

tidal waves and shock waves

36.
What is the distance between the seismic station and an earthquake epicenter, if the first S wave arrives 4.0 minutes after the first P wave?
a)
1500 kilometers
b)
3000 kilometers
c)
2500 kilometers
d)
2000 kilometers
37.

What is the measurement of how likely an area is to have damaging earthquakes called?

a)

gap hypothesis

b)

seismic gap

c)

earthquake hazard

d)

earthquake frequency

38.

What is the theory that active faults that have had few earthquakes will have strong ones in the future?

a)

seismic hypothesis

b)

forecasting hypothesis

c)

gap hypothesis

d)

frequency hypothesis

39.

What is the process of making buildings more earthquake resistant called?

a)

aftershocking

b)

restructuring

c)

gapping

d)

retrofitting

40.

What is the weight in the roof of a building that can shift to counteract the building's movement called?

a)

the mass damper

b)

the weight balance

c)

the retrofitter

d)

the roof dampener