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WorksheetsCH 19 Earth Putman
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
An area where no direct seismic waves from a particular earthquake can be detected is called
a)
an inactive fault zone.
b)
the mesosphere.
c)
a shadow zone
d)
the atmosphere.
2.
The composition of Earth’s interior affects
a)
how long an earthquake will last.
b)
the speed and direction of seismic waves.
c)
the location of an earthquake’s focus.
d)
the strength of an earthquake.
3.
What are the fastest body waves?
a)
S waves
b)
P waves
c)
Q waves
d)
T waves
4.
Earthquakes generally occur at plate boundaries, where
a)
stress on rocks is low.
b)
stress on rocks is greatest.
c)
magnetic pull is greatest.
d)
the most rock is found.
5.
On the modified Mercalli scale, how is intensity XII described?
a)
felt by only a few people indoors
b)
Total distruction
c)
causes light to moderate damage
d)
causes damage to ordinary buildings
6.
Which scale more accurately measures the magnitude of large earthquakes?
a)
Richter scale
Richter scale
b)
moment magnitude scale
c)
Mohs scale
d)
modified Mercalli scale
7.
A modern seismograph consists of
a)
10 sensing devices
b)
two sensing devices
c)
four sensing devices.
d)
three sensing devices.
8.
To find the distance to an earthquake’s epicenter, scientists
a)
chart the lag time between preshocks and aftershocks.
b)
analyze the arrival times of the P waves and S waves.
9.
If you are in a car during an earthquake, you should
a)
park near a tall building.
b)
drive toward a bridge.
c)
stop the car in a safe place.
d)
Run, while screaming and waving your hands in the air
10.
What happens to tsunamis as they move toward shore?
a)
They decrease in height.
b)
They increase in height.
c)
They die out.
d)
They turn into riptides.
11.
If you are indoors during an earthquake, you should
a)
stay away from windows.
b)
get on top of a desk or table.
c)
scream and panic.
12.
During a major earthquake, buildings
a)
are never damaged.
b)
always remain standing.
c)
may sway or collapse.
d)
do not move.
13.
Which of the following is true of earthquake prediction?
a)
They are unreliable
b)
They are correct everytime
c)
Can be predicted by math equations
d)
are impossible
14.
If you are indoors during an earthquake, you should
a)
get outdoors fast.
b)
stand near a window.
c)
stand on top of a desk.
d)
crouch under a desk.
15.
At what location does the first motion of an earthquake occur?
a)
the focus
b)
the mantle
c)
the epicenter
d)
the seismic gap
16.
A foreshock is
a)
a small earthquake.
b)
a large earthquake
c)
another name for seismic gap.
d)
a precursor to a tsunami.
17.
P waves are also known as
a)
Love waves.
b)
secondary waves.
c)
Rayleigh waves.
d)
compression waves.
18.
When seismologists record arrival times of P waves and S waves at several seismograph stations, they are looking for the earthquake’s
a)
epicenter.
b)
focus.
c)
magnitude.
d)
intensity.
19.
S waves are also known as
a)
Love waves.
b)
compression waves.
c)
Rayleigh waves.
d)
shear waves.
20.
Where does the first motion of an earthquake occur?
a)
epicenter
b)
compression waves
c)
focus
d)
fault
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