WorksheetsEarthquake Revision
Total questions: 17
Worksheet time: 9mins
What is an earthquake?
Energy released from the core of the earth up to the surface of the earth.
Vibration in the earth’s crust caused by the sudden release of stored energy.
Plates crashing into each other
Where are earthquakes located at?
Singapore
Along plate boundaries
Everywhere on earth
Inside the core of the earth
What form of energy is released from earthquakes?
Kinetic Energy
Heat Energy
Seismic Energy
Gravitational Energy
Earthquake's point of energy release is called... (the starting point of an earthquake)
Epicenter
Focus
Core
Earthquake's point of energy release on the SURFACE of the earth is called...
Epicenter
Focus
Core
How is an earthquake formed? Rearrange the process:
A. Pressure gradually builds up in the plates
B. Energy released by an earthquake causes the ground to vibrate violently.
C. Rocks slip to release seismic energy and resulting in an earthquake.
D. Plate movement causes a slow build-up of stress on the rocks of the fault.
A>B>C>D
D>A>C>B
C>A>D>B
D>C>B>A
The "small" earthquakes that occur after the main earthquake is called...
Mini quakes
Afterquakes
Aftershocks
Mini shocks
The amount of energy released is described as the ____________________ of an earthquake.
Energy
Multitude
Magnitude
Multiply
Which of the following does NOT affect the extent of damage of an earthquake?
Depth of focus
Time of occurrence
Species of trees
Level of preparedness
Earthquakes in areas with sparse population will affect lesser people than one that occurs in densely populated areas.
True
False
Practicing preparedness measures (e.g. hiding under the table) does not help to reduce impact of earthquake because people might forget what to do.
True
False
The time of the day an earthquake occurs affects the number of deaths. In daytime, people are awake and can react better or faster to save their lives.
True
False
Liquefaction is when...
magma rises to the surface
buildings are damaged, crumbling like liquid
the soil behaves like liquid
the ground becomes liquid
Earthquakes can cause:
A. Tsunami
B. Pyroclastic Flow
C. Landslides
D. Destruction of Infrastructures
Only A
A, B, and C only
A, C, and D only
All the above
What impact of earthquake is this?
Tsunami
Destruction of infrastructure
Fires
Destruction of buildings
What impact of earthquake is this?
Tsunami
Disruption of Services
Landslides
Destruction of buildings
What impact of earthquake is this?
Tsunami
Disruption of Services
Fires
Destruction of buildings
