Saturday, March 17, 2012

Students' response 1: Electrical Energy

Electrical Energy By Jill and John

Electrical energy is the movement of charged particles and is perhaps the most important form of energy that we use everyday, we use it for heating and lighting our home and schools and playing our video games. Electrical energy comes from two main sources renewable and nonrenewable. Electrical energy is associated with water power, magnets, electrical currents or a combination of these.   Fossil fuels, oil and gas (non renewable resources) has been the most common power source for electricity. However, today we are starting to use renewable resources such as solar, wind and geothermal energy to make electricity. Power plants use electromagnets to produce electricity. The amount of energy at the beginning (source) is conserved (remains the same) in the end, only the types of energy changes. Much of the energy goes into thermal (heat) 


solar energy is converted  to electrical energy
 

Chemical potential energy (coal) transforms to kinetic energy
to electrical, radiant, and thermal energy in light bulb 



External links http://www.factmonster.com/ipka/A0907040.html
http://www.enwin.com/kids/electricity/types_of_energy.cfm
http://www.sciencetech.technomuses.ca/english/schoolzone/Info_Energy.cfm

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