Renewable Energy Quiz
This quiz is worth 15 pts. There are 16 questions and you have 17 minutes
- 1.
In the northern hemisphere which of the following would describe how passive solar power for heating and cooling would work?
- A.
A house with windows only on the north side and an awning to block winter light
- B.
A house with windows only on the south side and an awning to block winter light
- C.
A house with windows only on the northern side and an awning to block summer light
- D.
A house with windows on the southern side and an awning to block summer light
Correct Answer
D. A house with windows on the southern side and an awning to block summer lightExplanation
Passive solar power for heating and cooling relies on utilizing the sun's energy to naturally heat and cool a building without the need for mechanical systems. In the northern hemisphere, the sun is predominantly in the southern sky. Therefore, a house with windows on the southern side would allow for maximum exposure to the sun's heat during the winter months, helping to warm the interior. Additionally, installing an awning to block the summer light would prevent excessive heat gain during the warmer months, ensuring efficient cooling.Rate this question:
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- 2.
Photovoltaics are solar panels used for electricity. They are commonly made of ___________
- A.
Gold
- B.
Silicon
- C.
Silver
- D.
Cadmium
- E.
Lead
Correct Answer
B. SiliconExplanation
Photovoltaics are solar panels that convert sunlight into electricity. They are commonly made of silicon. Silicon is a semiconductor material that has the ability to absorb photons from sunlight and release electrons, creating an electric current. It is widely used in photovoltaic cells due to its abundance, high efficiency, and stability. Gold, silver, cadmium, and lead are not commonly used in the production of photovoltaics.Rate this question:
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- 3.
Check the box next to each renewable energy resource that uses sunlight either directly or indirectly
- A.
Ethanol produced from corn
- B.
Hydroelectric power
- C.
Wind turbines
- D.
Geothermal power
Correct Answer(s)
A. Ethanol produced from corn
B. Hydroelectric power
C. Wind turbinesExplanation
Ethanol produced from corn is a renewable energy resource that indirectly uses sunlight. Corn, as a plant, undergoes photosynthesis to convert sunlight into energy, which is then used to produce ethanol. Hydroelectric power is another renewable energy resource that indirectly uses sunlight. Sunlight evaporates water, which then condenses and falls as rain, filling rivers and reservoirs. The flowing water is used to generate electricity. Wind turbines directly use sunlight as wind is created by the uneven heating of the Earth's surface by the sun. Geothermal power, on the other hand, does not directly or indirectly use sunlight, as it harnesses the Earth's internal heat.Rate this question:
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- 4.
WHich of the following are examples of biomass energy
- A.
Using an anaerobic digester to produce electricity
- B.
Incineration of garbage to produce electricity
- C.
Turning sugar cane into ethanol
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The given answer, "all of the above," is correct because all three options mentioned are examples of biomass energy. Using an anaerobic digester to produce electricity involves the decomposition of organic materials, such as animal waste or food scraps, to generate biogas that can be used for electricity production. Incineration of garbage to produce electricity involves burning organic waste materials to generate heat, which is then converted into electricity. Turning sugar cane into ethanol involves the fermentation and distillation of sugar cane juice or molasses to produce a biofuel called ethanol, which can be used as a renewable energy source.Rate this question:
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- 5.
HOw do we get hydrogen fuel to power a h fuel cell?
- A.
Drilling into rock formations underground
- B.
Electrolysis of water
- C.
Extraction from the atmosphere
- D.
All of the above
Correct Answer
B. Electrolysis of waterExplanation
Electrolysis of water is the process of splitting water molecules into hydrogen and oxygen using an electric current. This is a common method used to obtain hydrogen fuel for fuel cells. By passing an electric current through water, the water molecules break apart, and the hydrogen gas can be collected and used as fuel. This process is considered a sustainable and environmentally friendly way to produce hydrogen fuel, as it only requires water and electricity as inputs. Therefore, electrolysis of water is a viable method to obtain hydrogen fuel for powering a fuel cell.Rate this question:
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- 6.
Which of the following is a drawback to using wind power?
- A.
A wind turbine cannot be used to generate electricity
- B.
Wind is a nonrenewable energy source
- C.
A lot of air pollution is produced when the wind turbine spins
- D.
Birds can get killed when they migrate past the wind farm and get caught in the blades
Correct Answer
D. Birds can get killed when they migrate past the wind farm and get caught in the bladesExplanation
Birds can get killed when they migrate past the wind farm and get caught in the blades. This is a drawback to using wind power because it can lead to harm and even death of birds. Wind turbines have large rotating blades that can be hazardous to birds flying in their path. This can result in a negative impact on bird populations, especially during migration periods.Rate this question:
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- 7.
When compared to coal burning, which of the following is a benefit of solar power?
- A.
Solar power is a more reliable source of energy and can meet our high demand
- B.
Solar power panels do not emit greenhouse gases while they create electricity
- C.
Silicon Solar panels do not cost much to install and last a long time
- D.
ALl of the above
Correct Answer
B. Solar power panels do not emit greenhouse gases while they create electricityExplanation
Solar power panels do not emit greenhouse gases while they create electricity. This is a benefit of solar power because it helps to reduce the environmental impact and mitigate climate change. Unlike coal burning, which releases large amounts of carbon dioxide and other greenhouse gases into the atmosphere, solar power is a clean and renewable source of energy. By using solar power, we can reduce our carbon footprint and contribute to a more sustainable future.Rate this question:
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- 8.
Which of the following is a benefit to using ethanol made from corn?
- A.
Less soil erosion and land use
- B.
Cheaper to produce than gasoline
- C.
Renewable
- D.
Less dependence on foreign oil
Correct Answer(s)
C. Renewable
D. Less dependence on foreign oilExplanation
Ethanol made from corn is considered a renewable source of energy because corn can be grown and harvested repeatedly. This means that as long as there is a steady supply of corn, ethanol production can continue indefinitely. Additionally, using ethanol made from corn reduces the dependence on foreign oil because it can be produced domestically. This reduces the need to import oil from other countries, therefore increasing energy security and decreasing reliance on foreign sources.Rate this question:
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- 9.
In a hydroelectric dam, what drives the turbine to create electricity?
- A.
Falling water from the reservoir to the river
- B.
Evaporation
- C.
Flooding
- D.
Movement of water upstream
Correct Answer
A. Falling water from the reservoir to the riverExplanation
In a hydroelectric dam, the turbine is driven by the falling water from the reservoir to the river. As the water falls, it gains kinetic energy, which is used to turn the turbine blades. This rotational motion is then converted into electricity by the generator connected to the turbine. Evaporation, flooding, and movement of water upstream do not directly drive the turbine to create electricity in a hydroelectric dam.Rate this question:
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- 10.
What drives the turbine to produce electricity in a geothermal power plant
- A.
Hot magma that pours through the turbine
- B.
Hot rocks that radiate heat
- C.
Steam produced by magma close the surface
- D.
Steam produced by sunlgiht
Correct Answer
C. Steam produced by magma close the surfaceExplanation
The correct answer is steam produced by magma close to the surface. In a geothermal power plant, steam is produced when water comes into contact with hot rocks or magma deep underground. This steam is then channeled through a turbine, which spins as a result of the high-pressure steam flow. The spinning turbine drives a generator, producing electricity. Therefore, it is the steam produced by magma close to the surface that drives the turbine and ultimately generates electricity in a geothermal power plant.Rate this question:
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- 11.
Check the box next to each RENEWABLE source of methane
- A.
Cow manure
- B.
Sewage sludge
- C.
Fracking
- D.
Oil drilling
Correct Answer
A. Cow manureExplanation
Cow manure is a renewable source of methane because it is produced by cows on an ongoing basis. Methane is a byproduct of the decomposition of organic matter, such as manure, and can be captured and used as a renewable energy source. In contrast, sewage sludge, fracking, and oil drilling are not renewable sources of methane. Sewage sludge is a byproduct of wastewater treatment and is not continuously produced. Fracking and oil drilling involve extracting methane from underground reserves, which are finite resources and not renewable.Rate this question:
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- 12.
Tidal power can meet the energy demands of only coastal cities
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Tidal power is a form of renewable energy that harnesses the natural rise and fall of ocean tides to generate electricity. This power source is primarily located near coastal areas where there is a significant tidal range. Therefore, it is true that tidal power can only meet the energy demands of coastal cities as they have access to the necessary tidal resources. Inland cities, far from the coast, do not have access to tidal power and would need to rely on other sources of energy to meet their demands.Rate this question:
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- 13.
The process of turning corn into ethanol is called
- A.
Electrolysis
- B.
Ethanation
- C.
Fermentation
- D.
Seperation
Correct Answer
C. FermentationExplanation
Fermentation is the correct answer because it is the process of converting sugars present in corn into ethanol by the action of yeast or bacteria. During fermentation, the enzymes in the yeast break down the sugars into ethanol and carbon dioxide. This process is widely used in the production of ethanol as a biofuel. Electrolysis is not the correct answer as it is a process of using an electric current to drive a chemical reaction, and it is not typically used in the production of ethanol from corn. Ethanation and separation are not relevant to the process of turning corn into ethanol.Rate this question:
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- 14.
Tidal power creates electricity 24 hours a day
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Tidal power does not create electricity 24 hours a day. It relies on the rise and fall of tides, which occur twice a day. Therefore, tidal power can only generate electricity during certain periods when the tides are flowing in and out.Rate this question:
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- 15.
Which of the following is true about building dams for electricity
- A.
Dams are cheap to build and do not produce any pollution during construction
- B.
Dams are an ecologically friendly method of electricity production and do not harm biodiversity
- C.
Dams flood the ecosystem upstream destroying it
- D.
Dams help insure healthy salmon populaions
Correct Answer
C. Dams flood the ecosystem upstream destroying itExplanation
Dams flood the ecosystem upstream and destroy it because the construction of dams involves creating a reservoir by blocking a river or stream, which leads to the flooding of the surrounding land. This flooding disrupts the natural ecosystem and can result in the loss of habitat for various plant and animal species. Additionally, the altered water flow and temperature caused by the dam can further harm biodiversity and negatively impact the overall health of the ecosystem.Rate this question:
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- 16.
In order for a home to be awarded the energy star rating which of the following must be true?
- A.
The home must have both solar panels and windturbines
- B.
The home must consume 40% less electricity from the power grid as other homes
- C.
The home must be zero net energy
- D.
All of the above
Correct Answer
B. The home must consume 40% less electricity from the power grid as other homesExplanation
To be awarded the energy star rating, a home must consume 40% less electricity from the power grid compared to other homes. This means that the home should be designed and equipped with energy-efficient appliances, insulation, and lighting, among other features, to reduce its overall energy consumption. The presence of solar panels and wind turbines is not a requirement for the energy star rating, although they can contribute to the home's overall energy efficiency and sustainability. Therefore, the correct answer is that the home must consume 40% less electricity from the power grid as other homes.Rate this question:
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Current Version
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Oct 04, 2024Quiz Edited by
ProProfs Editorial Team -
Apr 01, 2013Quiz Created by
Chowanec
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