Free Practice Quiz Question List

03 Energy and the Energy Transition Online Quiz Questions

Use this free practice quiz with 20 questions to review 03 Energy and the Energy Transition, test your knowledge, and prepare for your next test or exam.

20 questions

Choose one

1 point

A household wants to maintain the same indoor comfort while reducing the energy needed for heating. Which change directly improves energy efficiency?

A
Add insulation to reduce heat loss.
B
Raise the thermostat while leaving the building unchanged.
C
Leave windows open to increase ventilation.
D
Replace LED lights with incandescent bulbs.

Written response

1 point

Coal, sunlight, wind, and uranium are examples of energy obtained directly from sources. What category describes this energy?

Fill in the blank

1 point

Replacing a gasoline-powered car with an electric vehicle is an example of .

True or false

1 point

True or false: Nuclear power is renewable because it generates electricity with very low operational CO₂ emissions.

A
True
B
False

Choose one

1 point

A grid has abundant solar electricity at midday and higher demand in the evening. What can batteries do to help balance this timing difference?

A
They generate electricity whenever demand rises.
B
They store electricity for use at a later time.
C
They eliminate the need for transmission between regions.
D
They make wind and sunlight available at all times.

Written response

1 point

What device transfers heat and can provide more heating energy than the electricity it consumes?

Choose all

1 point

Which statements describe effects associated with fossil fuels? Select all that apply.

A
Burning fossil fuels releases carbon dioxide.
B
Fossil-fuel extraction and transport can release methane.
C
Burning fossil fuels produces no air pollutants.
D
Combustion produces air pollutants that can harm health.

Fill in the blank

1 point

Long-lived fossil-fuel infrastructure can emissions by continuing to operate for decades.

True or false

1 point

True or false: Hydropower can often be adjusted to meet electricity demand, although dams may affect rivers and ecosystems.

A
True
B
False

Choose all

1 point

Which approaches can help identify or reduce the impacts of renewable energy projects? Select all that apply.

A
Careful siting of energy projects.
B
Assuming renewable technologies have no environmental impacts.
C
Recycling equipment and materials where possible.
D
Using lifecycle assessment to identify effects.

Choose one

1 point

A country reports its electricity use. Why is that figure not the same as the country's total energy use?

A
Electricity use includes all energy consumed directly as petroleum in transport.
B
Electricity is a primary energy source, so it fully represents total energy use.
C
People can use fuels directly, and electricity is only one part of total energy use.
D
Total energy use and electricity use are identical whenever a country has power plants.

True or false

1 point

True or false: Because biomass is renewable, any use of bioenergy automatically has low lifecycle emissions and no land-use or air-pollution concerns.

A
True
B
False

Choose one

1 point

A region is planning a low-carbon energy transition. Which approach best accounts for the different needs and constraints involved?

A
Adopt the same technology mix used elsewhere, regardless of local conditions.
B
Focus only on building generation and leave affordability and worker impacts for later.
C
Develop a regionally suited mix that supports reliable service, access, and fairness.
D
Keep all existing fossil-fuel use unchanged to avoid infrastructure planning.

Open ended

1 point

Describe a practical approach a region could take to transition to low-carbon energy. Include measures affecting both energy supply and energy use, and explain how the plan should address at least two concerns such as reliability, access, affordability, or impacts on workers and communities.

Written response

1 point

A town receives electricity generated from sunlight, wind, and natural gas. What category of energy is the electricity, given that it is made by converting primary sources?

Choose one

1 point

Two homes need to stay equally warm. One is drafty, while the other has improved insulation. Which change most directly reduces the energy needed to provide the heating service?

A
Install a larger heating system so the home warms faster.
B
Improve the home’s insulation so less heat escapes.
C
Keep the home at a higher temperature throughout the day.
D
Replace the home’s electricity supply without changing its heating needs.

Written response

1 point

A factory upgrades its motors and keeps production unchanged while using less energy. What term describes this improvement?

Choose one

1 point

A region often has more solar and wind electricity available at midday than it needs, but demand rises in the evening. What role can batteries play in addressing this mismatch?

A
They generate additional electricity when demand rises.
B
They eliminate the need to transmit electricity between regions.
C
They shift electricity from periods of high solar or wind output to periods of higher demand.
D
They make weather-dependent generation produce at a constant rate.

Choose one

1 point

A region plans to use locally grown biomass for energy. Which condition best supports describing this bioenergy as renewable while still recognizing its impacts?

A
It is renewable whenever biomass can be burned to produce energy.
B
It can be renewable when the biomass is regrown sustainably, although land use and lifecycle emissions still matter.
C
It is low-carbon in every case because plants absorb carbon while growing.
D
It is renewable only when it is used to generate electricity.

Choose one

1 point

A city replaces gasoline-powered cars with electric vehicles. Which statement best explains how this change can affect climate emissions over time?

A
The electric vehicle’s climate benefit generally increases as the electricity supply becomes cleaner.
B
The electric vehicle has the same climate benefit regardless of how its electricity is generated.
C
Electrification reduces emissions only if the vehicle is charged using a battery.
D
The electric vehicle’s climate benefit depends only on the number of charging stations.