HE_Energy and Science_V1

What is the scientific definition of energy?

• The ability to do work

• The movement of mass

• The physical movements of animals

• The ability to reproduce

What are the two major categories of energy?

• Kinetic and potential

• Thermal and mechanical

• Chemical and electrical

• Nuclear and gravitational

Which of the following is a primary source of energy for the Earth's processes?

• Solar radiation

• Wind power

• Geothermal energy

• Hydroelectric power

What is the main driver of the extensive development of human societies in the XIX and XX centuries?

• Fossil fuels

• Nuclear power

• Renewable energy

• Hydropower

What is the major contributor to climate change?

• Carbon dioxide

• Methane

• Nitrous oxide

• Ozone

Which alternative energy sources do not emit carbon dioxide?

• Wind and photovoltaic energy

• Geothermal and hydropower

• Biomass and biofuels

• Natural gas and coal

What is the capacity of solar radiation power efficiently harnessed?

• To completely replace fossil fuels

• To reduce carbon emissions by 50%

• To provide energy for half of the world's population

• To power small electronic devices

What is the challenge for the future in terms of energy?

• Building a world economy based on clean renewable energy

• Increasing fossil fuel consumption

• Expanding nuclear power plants

• Developing more efficient coal power plants

What is the primary energy source used by humans currently?

• Fossil fuels

• Renewable energy

• Nuclear power

• Hydropower

What is the amount of energy produced by the sun in a two-week period compared to the Earth's stored energy?

• Equal to the combined amount of all of the Earth's stored energy

• Less than the Earth's stored energy

• Greater than the Earth's stored energy

• Not mentioned in the text