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WorksheetsPRIBADI DEPOK GRADE 8 WORLD ENERGY NEED
Total questions: 21
Worksheet time: 11mins
Where does the energy received by the earth mostly comes from?
The earth it self
The Sun
The moon
The Asteroid
what is water cycle?
It is the continuous movement of water on, above and below the surface of the Earth.
It is the continuous movement of water on, above and below the surface of the Sun.
It is the continuous movement of water on, above and below the surface of the Mars.
It is the continuous movement of water on, above and below the surface of the Moon.
what is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
Boiling
Evaporation
Sublimation
Cristalization
Bellow are the application of evaporation except?
When clothes are hung on a laundry line, even though the ambient temperature is below the boiling point of water, water evaporates.
The use of evaporation to dry or concentrate samples is a common preparatory step for many laboratory analyses such as spectroscopy and chromatography
The Matki/Matka, a traditional Indian porous clay container used for storing and cooling water and other liquids.
Evaporative Heater, which can significantly cool a building by simply blowing dry air over a filter saturated with water.
what is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporisation?
Evaporatation
Condensation
Sublimation
Precipitation
What is any product of the condensation of atmospheric water vapor that falls under gravity, which the main forms include drizzle, rain, sleet, snow, graupel and hail?
Precipitation
Evaporation
Condensation
Sublimation
What is the flow of gases on a large scale?
Wave
Wind
Solar
Rain
What is the cause of wind to be occurred
Wind is caused by differences in the atmospheric pressure
Wind is caused by differences in the atmospheric precipitation
Wind is caused by differences in the atmospheric force
Wind is caused by differences in the atmospheric speed
When the Sun’s rays heat the ground some of the heat is passed into the air. The warm air rises and is replaced by cooler air. This movement of the air generates winds. What is the type of heat transfer that happened when wind flow from one place to another place?
Conduction
Convection
Radiation
Transmigration
Urbanization
What is a group of wind turbines in the same location used for production of electric power. A large wind farm may consist of several hundred individual wind turbines distributed over an extended area, but the land between the turbines may be used for agricultural or other purposes.
Solar wind
Wind farm
Windy day
Wind cloud
Winding road
Below are the advantage of wind energy except?
It’s a clean fuel source
The nation’s wind supply is abundant
Wind turbines can be built on existing farms or ranches
Good wind sites are often located in remote locations, far from cities where the electricity is needed
Below are the disadvantage of wind energy except?
Wind power must still compete with conventional generation sources on a cost basis. Depending on how energetic a wind site is, the wind farm may or may not be cost competitive.
Wind resource development may not be the most profitable use of the land.
Turbines may cause noise and aesthetic pollution.
Wind power is cost effective. It is one of the lowest-priced renewable energy technologies available today.
Where does waves comes from?
Waves are generated by wind passing over the surface of the sea
Waves are generated by sun passing over the surface of the sea
Waves are generated by gravitation over the surface of the sea
Waves are generated by moon passing over the surface of the sea
Below which one is the advantage of wave energy
Vast energy resource the abundance of these water bodies makes a broad availability of tapping ocean energy.
Location Inconvenience because the winds generate wave energy in the oceans. This is a limiting factor for countries that do not have a shoreline.
The large equipment installed in the ocean can cause a massive disturbance to the seafloor.
The wave energy platforms installed in the water may obscure the natural and beautiful view of the ocean.
Below which one is the disadvantage of wave energy?
Large platforms can cause a disturbance in marine vessels.
The production of power from this form of energy may not diminish
The production of wave energy is believed to be among the most benevolent methods of generating electricity.
These forms harvest the energy in the waves and easily convert it to electrical power.
what is thermal energy generated and stored in the Earth
Geology energy
Geothermal energy
Geophysics energy
Geography energy
What is the advantage of thermal energy?
Geothermal fields produce practically no emission
The extraction of geothermal energy from the grounds leads to a release of greenhouse gases
pecific locations might cool down after time
The need for drilling and installing quite a complex system into one’s home makes the price climb quite high.
What is the disadvantage of Geothermal energy?
It is an exceptionally constant source of energy, meaning that it is not dependent on neither wind nor sun, and available all year long
Geothermal requiring less space for hardware as opposed to conventional systems.
the life span of geothermal heat pump systems is relatively high
having a piece of land next to the house is required in order to be able to install one.
What is the main cause of ocean tides?
The gravity of the sun
The gravity of the moon
The gravity of mars
The gravity of earth
Below which one is the advantage of tidal energy
the power source of tidal energy is potentially renewable
the turbine frames may potentially disrupt the natural movement of marine animals
Tidal energy is considered as an intermittent source of energy,
Tidal energy facilities need to be constructed close to land
Below which one is the disadvantage of tidal energy
the tidal energy technology is not that cost-effective
tidal energy does not emit any greenhouse gases
Sea currents are highly predictable
Small dams and barrages, which are used to harness tidal energy, could protect ship ports and coastal areas from the dangerous tides during storms and bad weather conditions.
