Electricity in Pictures

DCMS 8th Grade Science

History of Electricity

• What scientists made an impact on human understanding of electricity, and in what ways? (p. 32)– Benjamin Franklin– Alessandro Volta– Michael Faraday– Thomas Edison– Nikola Tesla & George Westinghouse

How Electricity Works• What is electricity, exactly? (p. 63)

How Electricity Works• What makes Alternating Current more suitable

for long-distance transmission than Direct Current?

Electromagnetism• How does electromagnetism work? (p. 34)

turbinegenerator

How Electricity Works• How does a light switch work? (p. 35)

The Power Grid• How does a power grid work? (p. 36)

Southaven’s Power Plant on Stateline Rd.

The Power Grid• How does a power grid work? (p. 36)

How a natural gas power plant

(like Southaven’s)

works

The Power Grid• How does a power grid work? (p. 36)

Step-up transformers

Transmission lines

The Power Grid• How does a power grid work? (p. 36)

Sub station

Distribution lines

The Power Grid• How does a power grid work? (p. 36)

Distribution lines

The Power Grid• How does a power grid work? (p. 36)

Non-Renewable EnergyCOAL

Non-Renewable EnergyNATURAL GAS

From the documentary Gasland

The“Fracking”

Controversy

Non-Renewable EnergyPETROLEUM

Non-Renewable EnergyURANIUM / NUCLEAR

Fukushima, Japan, 2011

Renewable EnergyHYDROPOWER

Renewable EnergyWIND

Renewable EnergyBIOMASS

Renewable EnergyGEOTHERMAL

Renewable EnergySOLAR