NEW
Font size
S
M
L
XL
WorksheetsEarthquakes and Seismic Waves
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is a weakness or crack/break in the lithosphere that can shift and create an earthquake?
a)
Earthquake
b)
Epicenter
c)
Fault
d)
Focus
2.
What is the point at which the first movement occurs during an earthquake?
a)
Epicenter
b)
Focus
c)
Fault
d)
Plate
3.
What is the point on the Earth’s surface directly above the focus of an earthquake?
a)
Epicenter
b)
Fault
c)
Hypocenter
d)
Tremor
4.
Which type of wave is the first to arrive after an earthquake occurs?
a)
P- Wave
b)
Rayleigh Wave
c)
S- Wave
d)
Shear Wave
5.
Which body wave compresses and stretches rock materials as it passes through the Earth's interior?
a)
Body Waves
b)
P- Waves
c)
S- Waves
d)
Surface Waves
6.
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
7.
What is another term for P- Wave?
a)
Compression Wave
b)
Principal Wave
c)
Shear Wave
d)
Secondary Wave
8.
What is the name of the instrument that measures movements in the ground during an earthquake and creates electric signals that can be read to determine an earthquake's magnitude?
a)
Seismometer
b)
Seismic Station
c)
Seismogram
d)
Seismograph
9.
What is the measure of the amount of energy released in an earthquake?
a)
Intensity
b)
Epicenter
c)
Magnitude
d)
Seismogram
10.
Which scale rates earthquakes based on the amount of damage done?
a)
Mercalli Scale
b)
Richter Scale
c)
Seismogram Scale
d)
Bernoulli Scale
11.
What is the general term for a smaller magnitude earthquake that occurs after a larger earthquake in the same area?
a)
Aftershock
b)
Foreshock
c)
Seismic Gap
d)
Tsunami
12.
What is the shaking of the Earth’s crust caused by a sudden release of energy?
a)
Earthquake
b)
Epicenter
c)
Fault
d)
Plate
13.
The Richter scale measures...
a)
the amount of radon gas released during an earthquake.
b)
the movement of tectonic plates over a year.
c)
the strength of an earthquake.
d)
the intensity of an earthquake.
14.
The Modified Mercalli scale considers earthquake intensity and the amount of damage cause by an earthquake.
a)
true
b)
false
15.
Which waves travel fastest, always being the first pulse of waves detected by seismic stations?
a)
P- waves
b)
S- waves
16.
What do S- (secondary) waves do during an earthquake?
a)
Shake the ground in a shearing motion.
b)
Cause eruptions.
c)
Open cracks in the earth's surface.
d)
Cause buildings to move up and down.
17.
Which one of the reasons below could explain an earthquake rated high on the Richter scale, but low on the Mercalli scale.
a)
It probably happened in an area with few people.
b)
It was a fast moving earthquake and didn't last very long.
c)
Because damage was great, even though magnitude was low.
d)
None of the above.
18.
Which of the following amplifies the S- waves during an earthquake?
a)
Soft underlying soil
b)
Strong rocks underground
c)
Closeness to a volcano
d)
The number of big cities around the epicenter
19.
How much stronger is a magnitude 8.0 earthquake compared to magnitude 7.0 one on the Richter Scale?
a)
7/8 as strong
b)
10 times stronger
c)
56 times stronger
d)
twice as strong
20.
A written record of earthquake motion is called a ___________________.
a)
seismograph
b)
seismogram
c)
seismologist
d)
seismometer
Reset
