CHEM 1R03 Lecture 22: ee - elecricity - day 1 - 20
27 Nov 2017
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Document Summary
Sources of electricity kit solar, piezo, generator, battery, thermo, wet cell, potato clock. Video with handout nature of things renewable energy still as vhs. Shock the kids: chemical batteries (wet and dry), fuel cell wet cell two metals immersed in a liquid electrolyte. Almost all of our electricity comes from generators. These generators are powered by different fuels and these fuels can be classified as renewable or non-renewable. Renewable energy source can be restored within one human lifetime. Non-renewable energy source cannot be replaced within one human lifetime. Fossil fuels coal, oil, natural gas uranium. Examples of electricity: lightning, battery, static cling, power outlet. Static electricity a build up of charge on an object. If enough charge is built up, or if a pathway is provided for the electrons, the charge may discharge rapidly move from one place to another. Eg] drag feet across floor (build up charge) touch friend"s ear (pathway to ground) discharge.
