6.9-6.13 APES Quiz

If an incandescent light bulb used for lighting has an efficiency rating of 5 percent, then for every 1.00 joule of electrical energy consumed by the bulb, which of the following is produced?

0.05 joule of light energy

Scientists are looking for new locations to generate electricity using geothermal energy. Where would be the best choice for a geothermal energy generating plant?

Along plate boundaries.

What would be the best location for a wind farm with ten industrial turbines?

Arranged uniformly on a local farm that has fields and pasture land for dairy and grain productive. In the ocean or in the side of a hill or valley.

Explain the process of electricity generation in a hydrogen fuel cell.

At the anode, hydrogen is oxidized and electrons flow in a circuit to the cathode. At the cathode, oxygen reacts with the hydrogen to produce water. Water and heat are by-products of the reaction.

The largest hydroelectric dam in the world is located on one of the world's longest rivers in which country? Give the letter and name it.

China: Letter E. The Three Gorges Dam

What is the most successful solution to the problem of fish mortality caused by dams?

Fish ladders.

This type of energy utilizes heat that is stored beneath Earth's surface to heat water and produce steam. What is it?

Geothermal Power

Describe a disadvantage of geothermal energy production.

Geothermal energy implementation in homes and businesses has a high upfront cost, and electricity is needed to operate pumps. Noise and corrosive chemicals being released into the environment.

What energy source is not derived directly or indirectly from solar energy?

Geothermal energy.

Many environmentalists consider Egypt's Aswan High Dam on the Nile River to be an ecological disaster. Why?

It caused most of the nutrient rich silt that the Nile annually deposited downstream to be deposited behind the dam, therefore, robbing the downstream solids of its fertility.

Economic benefits of building large dams include which of the following? I. Storage of water for agriculture and domestic use. II. Controlling floods upstream. III. Production of renewable energy

One and Three

What actions would reduce global greenhouse emissions?

Replacing coal-burning power plants with wind farms.

Describe a way for the government to encourage efficient energy use.

Requiring higher fuel economy standards for new cars

Describe how the use of hydrogen fuel negatively impacts the environment.

The energy needed to produce the hydrogen fuel may come from fossil fuels, whose use contributes to ocean acidification and global climate change.

Describe the method of vehicle transport that is the most environmentally sustainable.

The use of a vehicle that is powered by hydrogen fuel cells.

Describe a benefit of increasing the number of offshore wind farms rather than onshore wind farms.

They produce three times as much electricity as wind farms on land because of increased wind speeds offshore.

Accurately describe a fuel cell vehicle.

They use hydrogen to generate electricity that runs the motor.

What is the most practical solution to maximizing energy production at wind farms while minimizing the risk to wildlife?

Turn off turbines during periods of maximum migration.

Geothermal energy plants are a viable alternative energy source. Why?

Use the heat stored in the Earth's interior to heat up water, which is brought back to the surface as steam. The steam is used to drive an electric generator.

Why do hybrid electric vehicles use less fossil fuel per mile traveled than atypical internal combustion engine vehicle uses?

When the brakes are applied in hybrid electric vehicles, kinetic energy is converted into electric energy to charge the batteries that assist the electric motor.