Switch Energy Station Quiz

How do we make electrons move to produce electricity?

• Electrons exchange places with the protons in the nucleus of an atom.

• Electrons vibrate rapidly in place until the atom they orbit bursts.

• Electrons jump randomly from the orbit of one atom to another.

• Electrons flow from the orbit of one atom to another in a single direction.

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Why has fracking become controversial recently?

• It is a very new and untested technology.

• A single well uses 3 million to 6 million gallons of water.

• It can only be used on a small number of wells (a few hundred per year).

• Water can easily be reused after fracking, but it is expensive.

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How does fracking primarily work?

• breaking rock to create larger below-ground reservoirs, improving reservoir pressure

• bringing broken, oil-rich rock fragments to the surface to be broken and processed

• pumping high-pressure water down a well to break rock and release oil and gas

• releasing high-pressure solvents from reservoirs to release oil and gas

Which of the following accurately describes how most silicon-based solar panels function?

• The full spectrum of light heats water between two layers of silicon.

• The full spectrum of light excites electrons between two layers of silicon.

• A narrow band of the spectrum of light excites electrons between two layers of silicon.

• Heat from the sun excites electrons between two layers of silicon.

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Hydroelectric plants use dams to store what kind of energy?

• electrical

• chemical

• kinetic

• potential

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Hydroelectric power plants generate what level of carbon dioxide emissions?

• moderate

• low

• none

• high

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What are two advantages of using wind turbines to generate electricity?

• Turbines are quick to build and produce no CO₂ emissions when generating.

• Turbines can be located anywhere and produce no CO₂ emissions when generating.

• Turbines produce no CO₂ emissions when generating and produce a constant supply of electricity.

• Turbines can be located anywhere and produce a constant supply of electricity.

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Where does the rarest, but most intense, source of geothermal energy come from?

• geologic plate boundaries

• molten core water

• hydraulic fracturing

• wells

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What is one commonly used source of biomass for energy generation?

• oil

• natural gas

• wood

• coal

What is the biggest challenge of biofuels?

• They cannot be produced within the existing agricultural system.

• The chemistry of making ethanol and biodiesel is complex.

• There is too much corn produced in the United States for biofuels.

• The raw materials that make biofuels have low energy density.