Vocabulary
In the formation of a domain, all of the magnets must do this.
What is line up?
This is the part of the magnet where the forces are the strongest.
What are the poles?
A ballon has this charge after being rubbed on someone's head.
What is a negative charge?
Rubber is considered this when we talk about circuits.
What is an insulator?
Currents, where objects change directions, are called this.
What is alternating current?
I am the amount of work required to move each unit of charge between two points.
What is voltage?
A magnet has to have two of these at all times.
A flashlight runs on this type of current.
What is direct current
This type of circuit is connected in rows that form one path for electric current.
What is a series circuit?
Some of the materials for a laboratory experiment are copper wire, plastic tubing, and a pair of cotton gloves. Why is the copper wire the best electrical conductor in this group of materials?
What can allow electrical charges to flow easily through it?
What is an electromagnet?
The number of coils around a nail (solenoid) affects the strength of an electromagnet by making it become this.
What is increase the strength of the electromagnet?
Given a thick wire and a thin wire, which will have the greatest electrical resistance?
What is a thin wire?
This type of circuit has more than one path that electric charges can flow.
What is a parallel circuit?
I am a device that increases or decreases the voltage of an alternating current.
What is the transformer?
I change electrical energy into mechanical energy.
What is an electic motor?
A North Pole and a South Pole do this.
What is attract?
The best place to seek shelter during a thunderstorm is this.
What is indoors?
One bulb goes out in a parallel circuit but all the others do this.
What is keep burning?
I am a device that converts mechanical energy into electrical energy.
What is a generator?
I am the build-up of electric charge on an object.
What is static electricity?
This type of material can be turned into a ferromagnet.
I am the opposition to the flow of electric charge.
What is resistance?
I am what all electic circuits must have.
What is an energy source, switch, and load
I am a device that measures the strength and direction of an electric current in a wire.
What is a galvanometer?