Thursday, November 29, 2012

ELECTRICITY






1) what is electricity? Electricity is the flow of electrical charge.Electricity is the most basic part of nature because it does so many jobs for us. It powe.rs our homes,televisions,computers,and cools our homes and is a big part of the economy

2) Why is electricity important to us? Because if we had no electricity we wouldn't be able to see.And we could not do our work and if we didn't have electricity we wouldn't have computers,tv's etc..

3) How do you use Electricity? Retail and service buildings use 149 billion kWh (or 508 trillion Btu) of site electricity (electricity consumed within the building) each year. This electricity is used for a variety of different purposes, the most being used for lighting.

4) How do we use Electricity? Millions of years ago, the remains of plants and animals built up in thick layers. This decayed matter from plants and animals is called organic material -- it was once alive. Over time, the mud and soil changed to rock, covered the organic material and trapped it beneath the rock.

5) What is the history of the human uses of electricity? In March 2003 the Department created two offices to provide focus in several critical areas: the Office of Electric Transmission and Distribution (TD), which advanced the technologies needed to ensure a reliable, robust and modern U.S. electricity grid, and the Office of Energy Assurance (EA).

 6) Name two types of Electricity? (AC) and (DC) wich mean derict cerrent and Alternating cerrent.

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