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WorksheetsSummative test in Science-7 Q4
Total questions: 40
Worksheet time: 20mins
Which type of fault is most likely to occur in the Philippines due to its tectonic setting?
Normal fault
Reverse fault
Strike-slip fault
Transform fault
How does the movement along a strike-slip fault differ from that of a reverse fault?
Vertical movement
Horizontal movement
Rotational movement
No movement
Which of the following methods can be used to locate the nearest fault system to a community?
Using a compass
PHIVOLCS FaultFinder
Earthquake seismograph
Barometer
What is the primary reason why earthquakes occur along fault lines?
Erosion
Human activity
Tectonic plate movement
Atmospheric pressure
The point on the Earth's surface directly above an earthquake's focus is called the:
Hypocenter
Magnitude
Epicenter
Intensity
Which of the following best explains why the Philippines experiences frequent earthquakes?
It is located in the Polar region
It is near the equator
It is part of the Pacific Ring of Fire
It is a desert region
How can underwater earthquakes lead to tsunamis?
By causing volcanic eruptions
By displacing large volumes of water
By increasing sea temperature
By dissolving land
What scale is used to measure the magnitude of an earthquake?
Richter scale
Celsius scale
Beaufort scale
Kelvin scale
How does the intensity of an earthquake differ from its magnitude?
Intensity measures energy released; magnitude measures damage
Intensity measures damage; magnitude measures energy released
Intensity measures duration; magnitude measures speed
Intensity measures location; magnitude measures distance
What is the primary function of a seismograph?
To predict weather changes
To measure atmospheric pressure
To record earthquake waves
To track volcanic activity
Which agency is responsible for monitoring volcanic and seismic activities in the Philippines?
PAGASA
PHIVOLCS
DENR
NDRRMC
During an earthquake, what is the safest action to take if you are indoors?
Run outside immediately
Stand under a doorway
Drop, cover, and hold on
Hide in a closet
How can communities reduce the risk of earthquake damage to buildings?
By using lightweight materials
By constructing buildings on fault lines
By implementing strict building codes
By increasing building height
What is one of the major effects of tsunamis on coastal communities?
Increase in marine biodiversity
Reduction in sea level
Destruction of infrastructure
Creation of new landforms
Which procedure is not usually part of local disaster readiness plans for earthquakes?
Regular earthquake drills
Construction of underground bunkers
Evacuation routes
Emergency supply kits
What type of energy interaction occurs when the Sun's energy reaches the Earth's atmosphere?
Chemical reaction
Nuclear fusion
Solar radiation
Geothermal exchange
How can individuals assess the risk of earthquakes to their community?
By consulting local folklore
By using historical earthquake data
By monitoring atmospheric conditions
By measuring soil acidity
Which is an example of a structural adaptation to minimize earthquake impact?
Painting buildings white
Installing solar panels
Using shock absorbers in foundations
Building on sandy soil
What is the main reason authorities alert communities about pending tsunamis?
To conduct environmental research
To prevent panic
To allow for timely evacuation
To increase tourism
Which of the following best describes a tsunami?
A tidal wave
A series of sea waves caused by underwater disturbances
A large storm surge
A heat wave
Which of the following is not a consequence of an earthquake?
Ground shaking
Volcanic eruption
Tsunami
Landslide
Why is it important for schools to conduct earthquake drills regularly?
To improve student attendance
To keep students physically fit
To ensure students know how to respond during an actual earthquake
To reduce stress levels in students
What kind of fault movement is responsible for most earthquakes in the Philippines?
Lateral slip
Vertical slip
Diagonal slip
Rotational slip
How do authorities typically alert communities of an impending tsunami?
By sending text alerts
By sounding sirens
By using social media
By broadcasting on radio
How do authorities typically alert communities of an impending tsunami?
By sending text alerts
By using social media
By sounding sirens
All of the above
Which factor does not directly influence the effects of an earthquake on communities?
Magnitude of the earthquake
Distance from the epicenter
Wealth of the community
Building quality
What is the role of PHIVOLCS in the context of earthquakes and tsunamis?
To provide weather forecasts
To monitor and study volcanic and seismic activities
To regulate fishing activities
To develop new technology
How is earthquake magnitude different from its intensity?
Magnitude measures the size of seismic waves; intensity measures energy release
Magnitude measures energy release; intensity measures the size of seismic waves
Magnitude is constant; intensity varies with location
Magnitude varies with location; intensity is constant
What is the most important factor in designing buildings to withstand earthquakes?
Cost of materials
Height of the building
Seismic design and construction quality
Color of the building
Which of the following statements about tsunamis is true?
They only occur in the Pacific Ocean
They can travel across entire ocean basins
They are caused by wind
They are predictable
Why is it important to have emergency supply kits during natural disasters?
To provide entertainment
To ensure basic needs are met when access to resources is limited
To increase home value
To impress neighbors
What is the primary cause of tsunamis?
Heavy rainfall
Underwater volcanic eruptions
Underwater earthquakes
Hurricanes
Which of the following is a non-structural mitigation measure for earthquakes?
Retrofitting buildings
Securing heavy furniture
Strengthening infrastructure
Installing seismic sensors
How do local disaster readiness plans help communities prepare for earthquakes?
By predicting the exact time of earthquakes
By providing guidelines for response and recovery
By preventing earthquakes
By reducing insurance costs
What happens to sea level when a tsunami approaches the shore?
It rises significantly
It drops sharply and then rises
It remains unchanged
It gradually decreases
In which of the following scenarios would a tsunami alert be issued?
After a major earthquake near the coast
During a heavy rainstorm
When a volcano erupts inland
After a small tremor in the desert
What is the safest action to take if you are at the beach and a tsunami alert is issued?
Swim towards the wave
Stay on the beach to observe
Move to higher ground immediately
Seek shelter in a boat
What is liquefaction and how does it affect buildings during an earthquake?
Solid ground turns into a liquid-like state, causing buildings to sink or tilt
Solid ground becomes harder, supporting buildings better
Groundwater rises to the surface, flooding buildings
Buildings are unaffected by liquefaction
What is one way to mitigate the impact of tsunamis on coastal communities?
Building seawalls
Planting more trees inland
Increasing beach tourism
Reducing carbon emissions
Which of the following best explains why structural and non-structural mitigation measures are important for earthquake-prone areas?
They make buildings more attractive
They ensure the safety and resilience of communities
They reduce the cost of construction
They facilitate faster construction
