Electric Circuits
Electromagnetism
Electricity from Magnetism
Communication Technology
Electric Devices
100
In this type of circuit, the charges flow from the battery through each light bulb and finally back to the battery
What is a series circuit
100
These people discovered a mineral that attracted things made of iron more than 2,000 years ago
What is The Greeks
100
In the parts of a simple generator these are attached to the ends of the wire in the coil
What is Slip Rings
100
This system uses dots and dashes to send messages over long distances
What is Morse Code
100
A this is a collection of many circuit parts on a sheet of insulating material
What is a Circuit Board
200
Direct current moves this many ways
What is 1
200
What are the points on a magnet that has opposite magnetic qualities
What is Magnetic Poles
200
An electric current is this when you move a magnet through a coil of wire
What is Induced
200
A this is a signal whose properties change without a break or jump between values
What is an analog signal
200
A semiconductor is a substance that conducts and electric current better then a this does but not as well as a conductor does
What an insulator
300
A blown this has to be replaced for things like, Christmas lights to work
What is a fuse
300
When you bring two magnets close together, the magnets each exert this on the other
What is Magnetic Force
300
Michael Faraday, from here, published his results that a magnetic field could make a electric current
Where is Great Britain
300
For a this to work you must talk into the transmitter
What is a telephone
300
This is the addition of an impurity to a semicondutor
What is Doping
400
This is equal to power X time, or E = P X t
What is electrical energy
400
All matter is made of this
What are Atoms
400
This type of coil steps up the voltage of the electric current traveling through the wire
What is the secondary coil
400
As the this rides in the records groves, it causes a electromagnet to vibrate
What is a Stylus
400
A this is an electronic device that allows electric charge to move more easily in one direction than in the other
What is a Diode
500
This law that the ratio of voltage (V) to current (I) is a constant for each material. V= I X R
What is Ohm's Law
500
If you cut a magnet in pieces, each piece with still be a magnet with this
What is two poles
500
He discovered that a electric current could make a magnetic field
Who is Hans Christian Oersted
500
A this is a device used by scientists to record waves made by earthquakes
What is a Seismograph
500
A this is an electronic component that amplifies, or increases, current
What is a Transistor
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