Solar Eenergy

What is the primary source of energy for wind turbines and hydroelectric dams?

• Geothermal heat

• Ocean currents

• The sun

• Nuclear reactions

Which resource will not run out for the next 5 billion years?

• Oil

• Natural gas

• Solar energy

• Coal

What percentage of the solar energy reaching Earth is currently harnessed?

• About 25%

• Nearly 50%

• Over 75%

• Less than 1%

Tags

NGSS.HS-ESS2-4

Which technology uses mirrors to concentrate sunlight for energy production?

• Photovoltaic cells

• Hydroelectric dams

• Wind turbines

• Concentrated solar power

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-2

What is a major challenge in using solar energy?

• It is too constant

• It varies by location and time

• It is too expensive to store

• It is harmful to the environment

Tags

NGSS.HS-ETS1-3