Which is a disadvantage of solid biomass as an energy source?

Emission of particulate matter and carbon monoxide

Expensive costs that can be prohibitive in developing countries

Emission of chlorofluorocarbons into the atmosphere

Release of more methane than other fuels

Emission of more carbon dioxide than other fuels

What is a benefit of flex-fuel vehicles?

The ability to run on both gasoline and E-85

Use of arable land to grow ethanol sources

Which can be a problem for run-of-the-river electricity generation stations?

Intermittent electricity generation

Which is the largest dam in the world?

Itaipu Dam, Brazil and Paraguay

Hydroelectric dams generate electricity by

water impoundment, in which dam operators control the rate of water flow to turbines.

using the energy of the river to produce steam.

using run-of-the-river systems, in which turbines are placed into the natural water flow.

using generators that are placed on the bottom of a river.

converting the kinetic energy of the water impounded behind a dam into potential energy.

Which would NOT be included in a passive solar energy design for heating and cooling in the Northern Hemisphere?

Windows along the west-facing wall

Flooring material with heat absorbing qualities.

Which is a disadvantage of concentrating solar thermal (CST) systems?

They disturb the natural environment by covering a large amount of land with solar reflectors.

The material sourcing requires excessive mining for a tracking system.

A large plant produces only up to 35 MW of electricity.

Production becomes more inefficient throughout the day as the temperature increases.

Building is cost prohibitive and economically inefficient.

Which is NOT a benefit of using wind energy over other renewables?

Wind turbines pose a threat to local wildlife.

The land used by a wind farm can also be used for other purposes.

Wind farms do not alter water quality.

Use of wind energy does not release greenhouse gases.

Wind is a nondepletable resource.

One of the biggest limitations to the wide scale use of geothermal energy is the need for

an area with warm water temperatures.

Why is a ground source heat pump an efficient choice for temperature control?

It uses up to 70 percent less energy than traditional central heating or air conditioning.

It is very inexpensive to install.

It is an active solar energy technology.

Which is not a disadvantage of hydrogen as a fuel?

The scarcity of water in which electrolysis can be conducted

The difficulty of obtaining free hydrogen gas

The large size of fuel tanks needed to store hydrogen gas

The lack of an infrastructure to transport hydrogen gas

Utility companies can best reduce peak demand events by

allowing customers to pay lower prices for energy when peak demand is low.

building power plants with larger generating capacity.

implementing rolling blackouts.

keeping an ample supply of coal on hand.

using renewable sources to generate peak electricity needs.

Which is NOT a reason that smart-grid technology might be beneficial in the United States?

Current energy suppliers are located in small, decentralized energy generation parks.

Some locations have the capacity to generate more electricity than is needed.

Some locations cannot supply the capacity of electricity needed.

Peak demands stress the electricity supply in some locations.

Using intermittent sources such as wind and solar power can lead to instability.

Which of the following is most likely to cause a quicker increase in the amount of electricity generated using renewable energy sources?

A fall in the cost of the technology required to use renewable energy sources

More widespread global incorporation of renewable energy sources

More education on the environmental benefits of the renewable resources

International treaties on greenhouse gas emissions

Converting infrastructure to accommodate renewable energy sources

Which would NOT save energy?

Replacing fluorescent bulbs with incandescent bulbs

Using Energy Star electronics and appliances

Using public transportation instead of private vehicles

Applying sustainable design principles to new construction

Charging electricity customers according to a tiered rate system

Energy Conservation

Authored by Charles Martinez

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4th Grade

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41 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which is NOT a way to conserve energy?

Using a desktop computer rather than a laptop

Consolidating errands while to make fewer car tips

Replacing incandescent bulbs with compact fluorescent bulbs

Using a power strip for electronics

Lowering thermostats during cold months

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A tiered rate system for electricity use charges customers

increasingly higher rates as the system uses more resources that are not renewable.

different rates based on the square footage of the dwelling or business.

lower rates for the first increments of electricity used and higher rates as usage rises.

different rates based on peak usage times.

according to their income status.

Tags

NGSS.HS-ETS1-3

NGSS.HS-ESS3-2

NGSS.HS-ESS3-4

NGSS.HS-ETS1-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

To construct a house using sustainable design, the building materials should

have a high thermal mass to reduce the need for heating.

have a low thermal mass to reduce the need for heating.

have a low thermal mass to retain heat.

be a light color to increase heat retention.

be a dark color to increase shade.

Tags

NGSS.HS-PS3-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which is NOT a benefit of green roofs?

A green roof serves as insulation for the structure.

A green roof has a cooling effect on the structure and its surroundings.

A green roof improves the overall air quality of the surroundings.

A green roof captures water.

A green roof is very heavy.

Tags

NGSS.HS-ETS1-3

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

An energy resource that can be regenerated indefinitely, as long as it is not overharvested, is

perpetual.

nonrenewable.

nondepletable.

unsustainable.

potentially renewable.

Tags

NGSS.HS-ESS3-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is a key advantage of nondepletable energy sources over nonrenewable energy sources?

Nondepletable energy sources will not run out on human time scales.

Electricity generated by nondepletable energy sources is consistently lower in price.

Nondepletable energy is easier to use than fossil fuels.

Use of nondepletable energy sources has no negative environmental effects.

Nondepletable energy sources do not require complex technology to use.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which energy source is Sun-driven?<br />I. Wind power<br />II. Biodiesel <br />III. Geothermal

I only

II only

III only

I and II

I, II, and III

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Energy Conservation

Which is NOT a way to conserve energy?

A tiered rate system for electricity use charges customers

To construct a house using sustainable design, the building materials should

Which is NOT a benefit of green roofs?

An energy resource that can be regenerated indefinitely, as long as it is not overharvested, is

What is a key advantage of nondepletable energy sources over nonrenewable energy sources?

Which energy source is Sun-driven?<br />I. Wind power<br />II. Biodiesel <br />III. Geothermal

Carbon neutrality refers to <br />I. using renewable sources of energy.<br />II. an activity that does not change atmospheric CO2 concentrations. <br />III. implementing efficient measures to reduce carbon emissions

Which is a disadvantage of solid biomass as an energy source?

Nondepletable energy resources include all of the following EXCEPT

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