Static Electricity
Circuits
Conductors and Insulators
Magnets
100
What in nature is an example of static electricity?
Lightning
100
What are the two main type of circuits that we learned about?
Series Circuits and Parallel Circuits
100
What is a conductor?
A conductor is material through which an electric charge can flow easily.
100
True or False: In order to work, a series circuit must be closed.
True
200
When an object has too many electrons, it has a _________ charge.
Negative
200
What type of circuit has only one path for the electricity to flow?
Series Circuit
200
What is an insulator?
An insulator is a material through which an electric charge cannot flow easily.
200
True or False: An electromagnet can be turned on and off.
True
300
When you rub a balloon on your hair, _________ moves from your hair to the balloon.
Electrons
300
What type of circuit has more than one path for electricity to flow?
Parallel Circuit
300
Provide three examples of a conductor.
Copper, iron, gold, aluminum, water, steel, silver.
300
Will these two magnets (below) attract or repel each other?
Attract
400
A thin strip of metal foil has a negative electric charge. You bring a balloon that also has a negative charge near the foil. What will MOST LIKELY happen?
The foil will bend away from the balloon.
400
Which device or devices could be removed without breaking the electric circuit?
The Switch
400
Provide three examples of an insulator.
Plastic, glass, cloth, sand, rubber, wood, dry air.
400
What is one example of an item that contains an electromagnet?
Doorbells, computers, speakers, telephones, cranes.
500
The shock you sometimes feel when you touch a metal doorknob on a dry day is called...
Electric Discharge
500
What type of circuits do homes have - series or parallel? Explain.
Homes are made up of parallel circuits so that if one light bulb burns out, the others will stay on.
500
Explain how you can tell whether an object is a conductor or an insulator.
You can tell whether an object is a conductor or insulator by creating a simple circuit and connecting each object to the circuit. If the bulb lights up, the object is a conductor, if the bulb does not light up, the object is an insulator.
500
What is one of the advantages of electromagnets?
They can be turned on and off, they can be made weaker or stronger, and you can switch the north and south poles.