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Electronics
Electricity, Components
And Circuits
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Electricity
What is it?
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The Atom
Protons
Electrons
Neutrons
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Electricity 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.
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Electricity 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 VS Parallel
Circuits
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Series Circuit
Complete Path
Path is Broken
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Parallel Circuit
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Components
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Key/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
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Diode
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