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Electronics
Electricity, Components
And Circuits
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ElectricityElectricityWhat is it?What is it?
Logo The Atom
Electrons
Protons
Neutrons
LogoElectricity is Created When…
One or more electrons are dislodged from an Atom. These free electrons become electricity. If an Atom is missing one of its electrons it becomes a positive Ion. If an Atom gains a extra electron it will become a negative Ion.
LogoElectricity is created
from..- Heat- Friction- Nuclear reaction- Light- Chemical reaction- Magnetism
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Key Terms - Conductor – allows electrons to flow through it
- Insulator – blocks the flow of electrons
- Current – a flow of electrons
- Circuit – the path that electrical energy travels
- Component – any electrical part that makes up a circuit
- Terminal – the place where you connect a wire to a component.
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Complete Circuit
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Series Circuit
Complete Path Path is Broken
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Parallel Circuit
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Components
LogoKey/Switch
Opens or closes a circuit
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Battery
Stores energy and gradually lets it out as called for
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Speaker
Changes electrical energy to sound
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Transistor
Acts like a switch when hit with a small amount of electricity
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Resistor
Restricts the flow of electricity
LogoDiode
Allows electricity to flow in only
one direction
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Capacitor
Stores electrons for a sudden discharge
http://blog.makezine.com/archive/2009/02/make-presents-the-capacitor.html
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Practice Quiz
http://www.quia.com/quiz/856160.html