WorksheetsLong Test 1
Total questions: 20
Worksheet time: 10mins
Which type of volcano maintains a low profile and tends to spread out over wide areas?
Striated volcano
Shield Volcano
Cinder Cone Volcano
Composite Volcano
What type of volcano has no known record of activity?
inactive
active
dormant
cinder
Which of the following is an active volcano in the Philippines?
Apo in Davao
Bud Datu in Sulu
Isarog in Camarines Sur
Kanlaon in Negros Oriental
What is the difference between lava and magma?
They are made of different types of rock.
They are different in colors.
After magma reaches the surface it’s called lava.
They originate from different places.
The higher the viscosity of magma, the higher its content of _________________.
iron
nickel
silica
gases
The composition of magma highly affects its viscosity. A higher concentration in silica leads to a more acid and more viscous magma. Which of the following best explains why viscosity of magma decreases with temperature?
The higher the temperature of magma is, the lower is its viscosity due to decreased crystallization of magma.
The higher the temperature of magma is, the higher its viscosity due to decreased crystallization of magma.
The lower the temperature of magma is, the higher is its viscosity due to decreased crystallization of magma.
The lower the temperature of magma, the more viscous it is viscosity due to decreased crystallization of magma.
Which of the following will likely happen if the volcano’s magma is high in silica?
The volcano will erupt quietly.
The volcano will remain dormant.
The volcano will erupt explosively.
The volcano will produce dark-colored lava.
Which eruptive style is excessively explosive like that of Mt. Pinatubo eruption?
Plinian
Phreatic
Strombolian
Phreatomagmatic
Which of the following volcanic hazards is made up of rocky particles about the size of a grain of sand?
Pahoehoe
Volcanic ash
Volcanic bombs
Volcanic cinders
Which of the following best explains why a thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings?
Ash is solid.
Ash cannot be blown by winds.
Ash becomes heavier as it cools.
Ash consists of tiny fragments of rocks that become heavy as they pile up.
Which type of energy can be harnessed from the volcano that generates electricity?
Hydrothermal energy
Hydroelectric energy
Geothermal energy
Solar energy
About 18% of the energy in the Philippines is harnessed using volcanic energy. Which of the following characteristics makes the country a good location in harnessing volcanic energy?
It has a lot of volcanoes.
It is near the Pacific Ocean.
It is near the equator.
It has a lot of rainforests.
Which energy flows will describe the correct pathway of producing geothermal energy?
Heat from magma-boiler-turbine-generator-electricity
Heat from magma-turbine-boiler-electricity-generator
Turbine-Heat from magma-boiler-generator-electricity
Generator- Heat from magma-turbine-boiler-electricity
Which of the following is the correct order of energy transformation in geothermal power plants?
Mechanical energy – Chemical energy – Electrical energy
Wind energy – Mechanical energy – Electrical energy
Heat energy – Mechanical energy– Electrical energy
Chemical energy – Mechanical energy – Electrical energy
What potential environmental issue can occur when building a geothermal energy plant?
The burning of fossil fuels
Water pollution from the chemicals
Toxic gases can be released when drilling
It can cause the melting of solar ice caps
Which of the following is not one of the warning signs used to predict a volcanic eruption?
changing chemistry of volcanic gas
the activity of animals
development and widening of surface cracks on the volcano
earthquake activity
Which will cause the turbine in the geothermal power plant to turn?
Electricity
Steam
Heat
Water
Which of the following is not included in a geothermal power plant?
Generator
Steam
Turbine
Wood
What will happen to hot water in a geothermal power plant?
It will turn into steam.
It will cause the turbine to turn.
It will send a signal to the generator.
It will flow directly to the injection well.
Which of the following devices is used in a geothermal power plant?
Heat
Steam
Well
Turbine
