Magnetism I
Magnetism II
Electricity I
Electricity II
Potpourri
100
When two magnets push away from one another; happens when two north or two south poles meet.
What is repelling?
100
When two magnets draw toward one another; happens when a north and south pole meet.
What is attraction?
100
A buildup of electric charge on an object or surface.
What is static electricity?
100
The loop (path) along which an electric current travels.
What is an electric circuit?
100
Coal, Natural Gas, and Oil are this.....
What is renewable energy or fossil fuel?
200
When the magnetic field lines are close together that means the magnet is 
What is "strong"?
200
A place on a magnet where its pulling force is the strongest.
What is a magnetic pole?
200
Prevents the flow of electrons.
What is a open circuit?
200
When the lights are on, the electric circuit is....
What is an closed circuit?
200
A machine that uses a magnet to change mechanical energy into electrical energy.
What is a generator?
300
A magnet can generate electricity in a wire if it is close to the wire and it is.....
What is "moving"?
300
Why is the Earth's magnetic field important to human survival?
What is protection from radiation from the solar winds?
300
Materials that allow electric current to flow through easily.
What are conductors?
300
This type of circuit that allows for all other loads to continue operating when one load burns out. All houses and businesses are wired this way.
What is a parallel circuit?
300
This is the type of energy in water behind a dam
What is potential energy?
400
Two of the three metals that are attracted to magnets.
What are iron and nickel and cobalt?
400
Materials in which the miniature magnets or domains are always aligned.
What are permanent magnets?
400
A magnet is set next to a compass. How would the needle of the compass react if the N end of the magnet is pointing toward it?
400
What type of wire has the least resistance? Name 2 factors.
What is a short and thick
400
How much energy is used if a fan has a resistance of 6 ohms and is plugged into a 120 volt outlet for 3 hours?
7.2 KWH or 7200 watt-hours
500
Electric current in a wire causes....
What is an "magnetic field"?
500
What will increase the strength of an electromagnet?
Increase: number of coils of wire
or number of batteries attached
500
When a permanent magnet moves through a coil of wire connected to a light bulb, the light bulb glows. How can the magnet make the light bulb glow?
The motion changes the magnetic field which causes electrons to move in the wire.
500
Would adding batteries to a circuit attached to a small motor affect the speed of the motor?
What is "Yes" because increased electrical force increases magnetic force in the motor
500
The power rating of a fan is 360 watts. If the fan is plugged into a wall outlet of 120 volts, what is the resistance of the fan?
What is 40 ohms?