electric modern lives by: hannah pelayic science-1
TRANSCRIPT
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Electric Modern Lives
By: Hannah PelayicScience-1
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Electricity at a glimpse
• Electricity all depends on charges. • Protons are positive, electrons are negative.• Opposites attract• Conductors- good for electrons to move
through• Insulators- bad for electrons to move through• Powers many things in the world
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Electricity- Secondary Energy Source
Because other energy sources are used to create electricity it is a secondary energy source. The process of converting the energy from coal, natural gas and other primary sources gives you electricity.
Think of electricity as a by-product of the natural resources in our world.
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Lightning
• Lightning is a static discharge. • http://green.nationalgeographic.com/environ
ment/natural-disasters/lightning-profile.html• This site gives vital information on lightning
and its amazing power. Not to mention you get to knock someone over.
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Lightning cont.
• There are two kinds of lightning.• Positive and negative lightning.• Positive lightning happens only 1 out of 20
thunderheads contain enough protons to create such a strike.
• The most common kind of lightning is negative.
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Electricity and its equivalents
• Electricity is easily converted into any other type of energy. If a light bulb is given electrical power, it changes it to light energy and thermal energy. A ceiling fan converts this power into mechanical energy.
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Where does this all come from?
• Electrical power can come from anything because it is just the rate at which electrical energy is changed. Electric energy can come from a battery, or through a larger producer like the power company.
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Dry cell batteries Wet cell batteries
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Lightning electrons
Electricity powering a light bulb