Energy Use and Conservation

Only recently have _________ become the main energy source in the U.S.

• fossil fuels

• renewable energy sources

In the nineteenth century, with the westward expansion of railroads, ____________ gained in popularity as a fuel.

• Coal

• Wind

• Gas/Petroleum

One way to preserve our current energy resources is to increase the ________________ of our energy use.

• Efficiency

• Use

• Effectiveness

Another way to preserve those resources is to __________ energy whenever possible.

• Turn it off

• Run the water

• Conserve

• Use only what you need

T/F: For most of human history, people burned wood for light, heat, and energy.

• True

• False: Hay and Wood

T/F: In addition, people harnessed the power of renewable resources such as wind and water.

• True

• False: Sun and Wind

Tags

NGSS.MS-ETS1-2

In the mid-twentieth century, wood and water joined coal as the dominant fuels.

• True

• False: Oil and Natural Gas

As fossil fuel supplies decrease, interest has increased in looking for nonrenewable energy sources.

• True

• False: Renewable

Insulation is the percentage of energy that is actually used to perform work.

• True

• False: Efficiency

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Energy Conservation means reducing energy use.

• True

• False: Energy Efficiency