Electrical Energy Where does it come from and where does it go?

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Post on 20-Jan-2016




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  • Electrical EnergyWhere does it come from and where does it go?

  • What is Electrical Energy?Electrical Energy is the energy of electric charges.

  • Where Does Electrical Energy Come From? 4 Basic Areas1. Dry Cell Batteries2. Wet Cell Batteries3. Photocells4. Thermocouples

  • Where Does It Go? Electrical energy can be converted into basically any other type of energy

  • But, Where Does Electricity Come From? From ATOMS!!!!The smallest particle a substance can be broken down into

  • Well, then what part of the atom is the important part???***the negatively charged particles found outside of the nucleus

  • Wellthen how do they move from one object to another?2 Main Culprits

  • ConductorsMaterials that negative charges move easily through

    Charges are free to move around Good conductors: metals such as silver, aluminum, copper, and mercury

  • InsulatorsA material in which negative charges do not move well

    Found on electrical wire to keep you from shocksGood Insulators: Plastic, rubber, glass, wood, and air

  • Charging ObjectsEvery object begins as neutral. Meaning it has no chargewe call this a 0 (zero charge).Then, in some situationsthey can become

  • Charge It!!!Objects become charged because they lose or gain electronsGain = becomes negativeLose = becomes positive

  • Well why do my pants stick to me then, they are insulators right?Right, but also wrong.hmmmThe buildup of electric charges on an objectStatic = does not move

  • Ouchyou shocked me!!!When the static electricity in an object leaves the objectExamples: cracking noise, shock, flash of light

  • Opposites Attract!!!Objects that have opposite charges are attracted to each other

    Result = objects are pulled together

  • Sames Repel!!!Objects that have the same charges are repelled

    Result = objects repel each other