Worksheets3-Earthquakes, Volcanoes and Tsunamis
Total questions: 15
Worksheet time: 11mins
The epicenter of an earthquake is...
The point below the surface where rock begins to break and the first motion occurs.
The seismic station closest to the earthquake.
The place where the greatest damage occurs.
The point on the surface directly above the focus.
The Richter scale measures:
the amount of lava released by a volcano
the movement of plates
the strength of an earthquake
the weight of tectonic plates
An instrument that detects and records earthquakes.
seismic wave
seismic station
seismograph
seismogram
The best way to protect yourself in an earthquake is to
run as fast as you can
drop, cover and hold
stop, drop and roll
go into the basement
A vibration caused by an earthquake.
seismic wave
seismometer
seismograph
seismogram
A record written by an instrument in response to ground motions produced by an earthquake.
seismic wave
seismometer
seismograph
seismogram
Most earthquakes happen along the _________________.
coast
faults
desert
directions
Earthquakes under the water can cause ___________________.
tornadoes
tsunamis
lightening
hailstorms
What causes the buildup of energy that is released at a later time when an earthquake occurs?
Heat from earth's core slowly melts the rocks found in the Earth's crust.
Nuclear reactions in Earth's lower crust release electromagnetic waves.
Jagged edges along a fault generate friction (heat) between two moving plates.
According to the elastic rebound theory, rocks bend until their strength is exceeded.
Which scale would most likely be used to tell how much earthquake damage was done to homes and other buildings?
Richter scale
Magnitude scale
Mercalli scale
Intensity Scale
Choose the correct statement:
P waves are slower than S waves
P waves have the same speed as S waves
S waves are slower than P waves
It is not possible to record the speed of S and P waves
S waves can travel through…….
Liquids but not solids
Solids but not liquids
Both liquids and solids
Neither solid or liquid
P waves can travel through…….
Liquids but not solids
Solids but not liquids
Both liquids and solids
Neither solid or liquid
Which type of seismic waves cause the most damage?
P waves
S waves
surface waves
body waves
What are seismic waves caused by?
Volcanoes
Traffic
Earthquakes
Thunder
