This kind of current is produced from a generator.
What is alternating current (AC)
100
a coil that has a soft iron core and that acts as a magnet when an electric current is in the
What is an electromagnet?
100
One of two points, such as the ends of a magnet, that have opposing magnetic qualities.
What is a magnetic pole?
100
a device that increases or decreases the voltage of alternating current
What is a Transformer
100
A material that insulates, especially a nonconductor of sound, heat, or electricity.
What is Insulator
200
This is created when electrons move (NOT electricity)
What are magnetic fields?
200
Faraday discovered that magnetic fields are created when this happens.
Magnetic fields are made when the electric field changes.
200
the process of creating a current in a circuit by changing a magnetic field
What is electromagnetic induction?
200
or energy to get to your home, voltage is _________ at the power plant, then it is ___________ before the current is used.
increased decreased Bonus: 1 step up transformer, 2 step down transformers
200
an object or type of material that permits the flow of electric charges in one or more directions.
What is Conductor
300
the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.
What is ohm's
300
What scientific principle is generators and motors example of?
What is electromagnetic induction
300
a device that converts mechanical energy into electrical energy
What is a Generator
300
A transformer that induces a larger current in the secondary coil is known as this.
What is a step-up transformer
300
a closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit
What is Parallel Circuit
400
an electromotive force or potential difference expressed in volts.
What is voltage
400
the difference of electrical potential between two points.
What is Potential Difference
400
a machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts.
What is Motor
400
An electric circuit connected so that current passes through each circuit element in turn without branching.
What is Series Circuit
500
a device having a designed resistance to the passage of an electric current.
What is Resistor
500
a unit of electric current equal to a flow of one coulomb per second.