If while combing your hair, your hair becomes positively charged, the comb becomes this.
What is negatively charged?
100
This is the measure of an object's ability to resist the flow of current.
What is resistance?
100
In a series circuit, this is the same at every point of the circuit.
What is current?
100
These three things will increase the strength of an electromagnet.
What is adding a battery, increasing the number of coils, or increasing the size of the nail?
100
This device converts electric energy to rotational kinetic energy.
What is a motor?
200
Positive electric charges attract these charges.
What is negative electric charges?
200
The flow of electrons.
What is current?
200
This is the total voltage of five 1.5-V batteries placed in series.
What is 7.5 V?
200
This is the continent where the magnetic north pole is located.
What is Antarctica?
200
This is what a power company sells to its customers. (Hint: $/kWh)
What is energy?
300
This type of material allows electrical charge to flow through it.
What is a conductor?
300
Amount of energy per unit of charge.
What is voltage?
300
The electrical outlets in our homes are wired with this type of circuit.
What is a parallel circuit?
300
The area that surrounds a strong magnet where other objects can be affected by the magnet's force is called this.
What is the magnetic field?
300
This is 1560 watts converted to kilowatts.
What is 1.560 kilowatts?
400
This is where almost all the electrons that flow in a circuit originate.
What is atoms in the wire itself?
400
This is the rate of energy flow.
What is power?
400
In a parallel circuit, the voltage drop in each branch is equal to the voltage of this.
What is the battery?
400
The process of inducing a current into a wire by moving a magnet across it.
What is electromagnetic induction?
400
You use a 1100-watt light bulb for 3 hours per week. How many kilowatt-hours will this amount to in a month? (Assume that there are 4 weeks per month.)
13.2 kWh
500
If you rub a balloon on the carpet and then touch it to the wall it will "stick" because of this.
What is a buildup of electrons attracted to the protons in the wall.
500
This is what is formed by the alignment of electrons' magnetic fields; they must be aligned in order for an object to be magnetic.
What is a magnetic domain?
500
This is the equivalent resistance of a parallel circuit with five resistors of resistances 2, 3, 4, 5, and 6 ohms.
What is 0.7 ohms?
500
Objects with strongly aligned magnetic domains, even when not in a magnetic field, are likely to be these.
What are permanent magnets?
500
If the electric company charges $0.10/kWh and you use a total of 10,900 watt-hours in a day, how much will the electric company charge you for that day?