Magnetism I
When two magnets push away from one another; happens when two north or two south poles meet.
What is repulsion or repelling?
When two magnets draw toward one another; happens when a north and south pole meet.
What is attraction?
Batteries are a common source of...?
What is electricity or power source?
The loop (path) along which an electric current travels.
What is an electric circuit?
A temporary magnet that works only when electricity runs through it.
What is an electromagnet?
An invisible area where magnetic forces are present.
What is a magnetic field?
A place on a magnet where its pulling force is the strongest.
What is a magnetic pole?
An electric circuit with no breaks.
What is a closed circuit?
An electric circuit with a break in it.
What is an open circuit?
A machine that uses a magnet to change mechanical energy into electrical energy.
What is a generator?
Involves a push or a pull.
What is magnetism?
The strength or energy that moves an object.
What is force?
In this type of circuit, if one component breaks or is removed, the other components connected to the same power source will continue to function because electricity has multiple paths to flow.
What is a parallel circuit?
Aluminum foil, paperclip, and pipe cleaners.
What are conductors of electricity?
To increase the strength of an electromagnet, you can either increase the current flowing through the wire, or increase this property of the wire coil.
What is the number of turns (or coils) in the wire?
Three metals that are attracted to magnets.
What are Nickel, Iron, and Cobalt?
Type of transportation that has the ability to float above the track.
What is a Maglev train?
This fundamental law in electricity states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the resistance between them.
What is Ohm's Law?
Materials that do not carry electric current easily.
What are insulators?
A machine that uses an electromagnet to change electrical energy into mechanical energy.
What is an electric motor?
Refrigerators, junkyards, whiteboards, doorbells, and electronics.
What are the common uses of a magnet?
This uses the geomagnetic field to find directions.
What is a compass?
This specific type of circuit connection, if one light bulb goes out, causes all other light bulbs in the circuit to go out as well.
What is a series circuit?
Energy flows in this direction...
What is unidirectional? (or from negative to positive)
Battery, wires, and a lightbulb.
What are the materials to make a simple circuit?