Electric Charges
These repel each other.
What are like (or same) charges?
This current reverses many times a second.
What is alternating current (or AC)?
This is where the magnetic field is the strongest on a magnet.
What are the poles?
An electric generator converts this into electrical energy.
What is mechanical energy?
A hair dryer that uses 240 V and allows 5.0 A of current uses this much power.
What is 1200 Watts?
The charge on an atom that gains electrons.
What is negative?
There is more than one path for current in this type of circuit.
What is parallel?
As distance decreases between two magnets, this happens to the magnetic field.
What is increases?
A transformer increases or decreases this.
What is voltage?
Increasing the thickness of a wire would do this to the resistance.
What is reduce?
The type of current used in a battery.
What is direct current (or DC)?
All lights will go out if one burns out in this type of circuit.
What is a series circuit?
Generating an electric current by moving a magnet into a coil of wire is this.
What is electromagnetic induction?
A current-carrying coil of wire that produces a magnetic field is this.
What is a solenoid?
A neutral object can become charged by coming near a negatively charged object, but without touching by this.
What is induction?
This has electrons that are free to move.
What is a conductor?
This is the voltage if the current is 4.0 A and the resistance is 60 ohms.
What is 240 V?
A magnetic field is created by this.
What is moving electric charges? (or electrons)
Voltage can be increased in a coil of wire in electromagnetic induction by moving a magnet this way.
What is faster?
This is maintained across the positive and negative terminals of a battery.
What is an electric potential?
A balloon rubbed on hair is charged by this.
What is friction?
When electrons are transferred to the top of an electroscope, this happens to the metal leaves.
What is spread apart?
A ferromagnetic material is a magnet if this is true.
What is its domains are aligned?
In an electric motor, repeatedly changing the direction of current in the electromagnet can cause the axle to spin because of this.
What is reverses the magnetic field?
A permanent magnet can be demagnetized by these two ways.
What is by striking it hard and heating it?