Solar energy is derived from:
a) The Moon
b) The Sun
c) Fossil fuels
d) Nuclear reactions
What device converts sunlight into electricity?
a) Wind turbine
b) Solar panel
c) Generator
d) Transformer
Which type of energy is harnessed by wind turbines?
a) Thermal energy
b) Nuclear energy
c) Mechanical energy
d) Kinetic energy
Which country generates the highest amount of solar power?
a) USA
b) Germany
c) China
d) India
What is the main advantage of solar energy?
a) It is non-renewable
b) It produces carbon emissions
c) It is unlimited and clean
d) It is expensive to operate
Which part of a wind turbine captures wind energy?
a) Tower
b) Rotor blades
c) Generator
d) Nacelle
Which factor affects solar panel efficiency?
a) Wind speed
b) Sunlight intensity
c) Water availability
d) Soil quality
Which gas is NOT emitted by solar panels?
a) Carbon dioxide
b) Methane
c) Sulfur dioxide
d) None of the above
What is the main disadvantage of wind energy?
a) High greenhouse gas emissions
b) Noise pollution
c) Requires fossil fuels
d) Increases temperature
Which material is commonly used in solar panels?
a) Iron
b) Silicon
c) Copper
d) Aluminum
Which type of solar panel is the most efficient?
a) Monocrystalline
b) Polycrystalline
c) Thin-film
d) Hybrid
What is the name of the system that stores excess solar energy?
a) Power grid
b) Inverter
c) Battery storage
d) Transformer
Which country produces the most wind energy?
a) USA
b) China
c) Germany
d) India
What does a wind turbine convert wind energy into?
a) Thermal energy
b) Electrical energy
c) Chemical energy
d) Nuclear energy
What is the primary source of wind energy?
a) Tides
b) The Sun
c) Geothermal activity
d) Earth’s rotation
What is a key disadvantage of solar energy?
a) High carbon emissions
b) Not available at night
c) Requires a large amount of water
d) Produces radioactive waste
Which part of the wind turbine generates electricity?
a) Rotor
b) Generator
c) Blades
d) Tower
What happens when wind speed is too high for turbines?
a) They stop working
b) They generate more power
c) They melt
d) They produce sound energy
What is the main reason wind farms are located offshore?
a) Less noise pollution
b) More stable and stronger winds
c) Less maintenance required
d) Lower installation cost
Which sector benefits the most from solar energy?
a) Transportation
b) Agriculture
c) Construction
d) Oil refining
What is used to track the sun’s movement for increased solar efficiency?
a) Wind turbine
b) Solar tracker
c) Transformer
d) Power grid
What is an advantage of offshore wind farms?
a) Easier installation
b) Lower transmission losses
c) More consistent wind speeds
d) Lower costs
Which device converts DC power from solar panels into AC power?
a) Generator
b) Battery
c) Inverter
d) Turbine
Which factor influences wind power generation the most?
a) Temperature
b) Wind speed
c) Rainfall
d) Humidity
What is the lifespan of most solar panels?
a) 5-10 years
b) 10-15 years
c) 20-30 years
d) 50-60 years
Which energy source is considered more predictable?
a) Wind energy
b) Solar energy
c) Both are equally predictable
d) Neither is predictable
What is the purpose of net metering in solar energy?
a) Increase battery storage
b) Sell excess energy back to the grid
c) Reduce wind energy usage
d) Measure water consumption
Which of the following affects solar panel performance?
a) Temperature
b) Dust accumulation
c) Angle of installation
d) All of the above
What type of wind turbine is most commonly used for electricity generation?
a) Vertical-axis turbine
b) Horizontal-axis turbine
c) Offshore turbine
d) Portable turbine
Which energy source has the highest potential for global use?
a) Fossil fuels
b) Solar energy
c) Hydropower
d) Nuclear energy
