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Quiz: Solar Energy

Quiz: Solar Energy

When the sun rises, it's for everyone, but there are minds that shine brighter than others. How many answers can you get right?

Select an option on each of the questions and find out your level of knowledge about solar energy.

Sunlight takes approximately how long to reach the surface of the Earth?

a)8 minutes
b)30 minutes
c)1 hour

In addition to solar panels, other solutions for the collection of solar energy in our house already exist in the market. What are we talking about?

a)Genetically modified solar climbing plants that allow for the collection of solar energy.
b)Solar tiles, which transform the roof of a house into an energy generator, while retaining the appearance of a traditional roof.
c)Solar tricycles, which when used by children to play in the yard, supply the house with solar energy.

Can solar energy be collected at night?

a)No, solar energy can only be collected during the day. In optimal conditions when the sky is clear and cloudless, but also in periods of cloudy sky.
b)Yes, solar energy can also be collected at night, but only on full moon nights.
c)Yes, solar energy is collected during the day or at night, although during the day it is more favorable.

In the last years, a country stood out for organizing for the first time an international game of Football, resorting solely to solar energy. In which stadium was it?

a)Alvalade Stadium, in Lisbon, Portugal (Euro 2004)
b)Santiago Bernabéu Stadium in Madrid, Spain (Champions League Final 2010)
c)Mineirão Stadium, in Belo Horizonte, Brazil (World Cup 2014)

How much CO2 is emitted by an electric car in a 20km trip, at 80km/h?

a)If the speed remains stable, about 80g of CO² per km.
b)Never less than 100g of CO² per km.
c)Electric cars move between two points without emitting CO², therefore 0g per km.

How does Photovoltaic energy work?

a)Solar energy is produced through Photovoltaic cells, usually made up of silica. These cells receive photons (from the sun's rays) and then form electrons (the lowest possible charge of negative electricity).
b)Photovoltaic energy is produced through the division of uranium or plutonium atoms, atmospheric gases that reach the Earth through the solar rays. This fission results in the production of electrons (the minimum possible negative electricity load).
c)Solar energy is produced by Photovoltaic cells, usually made up of cadmium. These cells receive protons (from the sun's rays) and then form electrons (the lowest possible charge of negative electricity).

What is SolaRoad?

a)It is the first solar bicycle path in the world, located in the Netherlands and inaugurated in 2014. Built with concrete plates coated by Photovoltaic cells, it generates approximately 70 kilowatt/hour of energy per square meter per year.
b)It is a prototype for recyclable and ultra-resistant shoe soles.
c)It is the name given to the path that the solar rays travel until they reach the surface of the Earth.

At the river basin of the Rabagão river, in Montalegre, EDP installed a solar plant, in a pioneering way at European level. What are the advantages of using surfaces already occupied by hydraulic plants to also install solar power plants?

a)It allows to use the solar energy to heat the water in the dams and to introduce it already hot in the conduit of surrounding dwellings.
b)The use of other areas of recognized utility is avoided, and the connection to the already installed electrical network is used, which the hydroelectric power stations only use seasonally.
c)Installing a solar power plant near a hydroelectric power plant will contribute to a greater condensation of water in the area and increase the level of rainfall, benefiting the localities suffering from extreme drought.

It is possible to travel in airplanes solely powered by solar energy. True or false?

a)True. It is possible, although the technology has not yet become widespread. Bertrand Piccard was the first pilot to fly an aircraft powered by solar energy at the beginning of 2016.
b)False. It is not possible, because the energy produced through sunlight is not as potent as that which is generated through fossil fuels.
c)False. It is not possible because the necessary technology has not yet been developed.

Is solar energy really “clean" energy?

a)Yes, by taking away the pollution generated by the production of the photo voltaic panels themselves, the sun is a completely clean and inexhaustible source of energy.
b)No, because the solar panels have a very short durability, they can not be reused and cause noise pollution.
c)No, because solar energy is converted into electricity through generators that function based on combustion engines.

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