Topic 4 - The use of electrical energy affects society and the environment

Created from the decomposition of prehistoric plants & animals.

Machine which utilizes the flow of a fluid. Examples: steam, water, air to rotate a shaft.

Motor which runs in reverse.

It is something that would not work as a motor.

Splitting of atoms which remodels them into lighter elements which releases huge amounts of energy.

Energy from the center of the Earth.

Organic matter, used as an energy source. Example: food, agricultural waste

Use of waste energy from a process for another purpose. Example: heating or generating electricity.

Tides, Wind, Sunlight

• Water moving can also power turbines which run generators. It is another way to use water to produce electricity.

• Moving air can spin blades of windmills and generate electricity. • Used to capture natural energy and turn it into electricty.

• The suns energy sends electrons from 1 silicion layer to another creating a voltage. • Photovoltare effect was first formed by Alexandre Edmond Becquerel in the year 1839.

A fuel cell generates electricity directly from a chemical reaction with a fuel. Example: hydrogen

Resource, that cannot be restored. Example: coal, natural gas

Resource which is continually restored an therefore can be utilized or used indefinitely.

Fine airborne ash produced by burning coal, and solid fuels.

Soil disruption is the Elimination of natural ecosystems which is a problem created by the production of electricity.

• Technology needs resources to produce and operate devices making sustainability more hard to achieve. • Out-of-date are left behind, damaged as waste. • Some technologies, are very expensive for all countries to afford.

Several jobs can run faster or more smoothly.

Numbers with just ones and zeroes.