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Unit 2 Review Sheet for electricity
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Electricity Review
Know the parts of an atom, their charges, and their locations.
Electrons move around the atom and make electricity.
There are two types of electricity. They are static electricity, where electrons move from one point to another by jumping, and current electricity, where electricity flows through circuits.
The flow of electricity is an electric current.
Be able to identify a parallel and series circuit.
Series circuits only have one path for the current to travel through.
A parallel circuit has more than one possible path for the current to travel through. The lights at home are on a parallel circuit. If one bulb goes out, the others still stay lit.
The filament in the light bulb produces light.
An insulator is a material that electric current cannot pass through.
Conductors let electricity flow through them. Two conductors are copper and brass.
Non-conductors don't let electricity flow through them. Wood and styrofoam are non-conductors. They can insulate things because they don't let electricity pass through them.
Resistors are materials that cut down the flow of electric current and use the electricity, but do not stop it.
Things like plastic can get a positive charge if electrons are removed from it. When we rubbed a ruler on wool, electrons were removed and the water was then attracted to the ruler.
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