Energy Resources and Consumption

The high sulfur content of the coal burned in South African power plants means that the ________.

• coal is very expensive, forcing most poor people to go without electricity

• coal is very inexpensive, leading to an improved economy

• power plants burn cleanly, with little pollution

• power plants contribute to acidic deposition

Tags

NGSS.HS-ESS3-4

Coal burning produces more greenhouse gases per unit of energy than any other fuel

• True

• False

Tags

NGSS.HS-ESS2-4

Which of the following best explains the energy transformations that occur in a coal burning power plant (in the correct order)?

• chemical-heat-mechanical-electrical

• mechanical-electrical

• heat-chemical-electrical 

• chemical-mechanical-heat-electrical

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-3

Photovoltaic cells convert sunlight into:

• Heat

• Motion

• Light

• Electricty

Tags

NGSS.HS-PS3-3

Most of the energy with an incandescent light bulb is converted to 

• heat energy

• kinetic energy

• potential energy

• transportation

Tags

NGSS.HS-PS3-4

Put the items below in correct sequence for the generation of electricity using the wind

• 2-1-3-4

• 2-3-1-4

• 2-4-3-1

• 1-2-3-4

Tags

NGSS.HS-ETS1-2

NGSS.HS-ETS1-3

NGSS.HS-PS3-3

Compared to typical petroleum extraction, oil sands (or tar sands)

• require more energy to extract

• require more water to extract

• releases more carbon dioxide

• all of the above

Tags

NGSS.HS-ESS3-4

Scrubbing is a technique used by utilities companies to:

• increase the sulfur content in the exhaust gases generated from coal combustion

• increase the nitrogen oxide content in the exhaust gases generated from coal combustion

• decrease the water content in the exhaust gases generated from coal combustion

• decrease the sulfur oxide content in the exhaust gases generated from coal combustion

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

Problems with exploiting oil shale and tar sand deposits as an alternative to crude oil include all of the following except:

• the deposits are usually deeply buried and difficult to extract

• the conversion process to fuel requires a lot of energy 

• the mining and conversion process requires a lot of water

• mining would involve widespread disruption of the land surface

Tags

NGSS.HS-ESS3-2

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

Use Figure. The graph projects the smallest rise from 2008 to 2035 in the use of

• Coal

• Liquids

• Natural Gas

• Nuclear

Tags

NGSS.HS-ESS3-1