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Electricity Review

Prepare for your Electricity test with this stack

What are the three parts of every electrical circuit? 1. Battery 2. wires 3. bulb
Which type of circuit allows a current to flow through it? closed
Plastic and Glass are good... insulators
What do you call a material that allows electricity to flow through it? conductor
Johnny built a circuit where all of the light bulbs stayed on, even when he unscrewed one lightbulb. What type of circuit did Johnny build? parallel circuit
What do you call a substance that electricity can not flow easily through? insulator
Most metals are good _________. conductors
Electrons flowing from one object to another is called... electricity
What rule of polarity do you need to follow with batteries? Positive terminal must be touching the negative terminal
What do you call the part of bulb that glows? filament
If you unscrew a light bulb in a series circuit, what happens to all of the other bulbs? They go out.
As you add lightbulbs in a series circuit, what happens to the brightness of the lightbulbs? They get dimmer.
As you add lightbulbs in a parallel circuit, what happens to the brightness of the lightbulbs? They stay the same.
Why do all of the other lightbulbs stay lit in a parallel circuit, even after you unscrew one bulb? There are many paths of electricity. The electrons can choose a different path.
Created by: mharvey19