Circuits
Electrical charges build on the surface of an object
What is static electricity
any material that can attract iron
What is a magnet?
a maglev train uses this to propel
What is an electromagnet?
discovered that current traveling through a wire makes a weak magnetic field
Who was Hans Oersted?
material that blocks electricity
What is an insulator?
electric current that carries information
What is an electric signal
The continuous flow of electrons
What is current electricity
Magnetic force is strongest here
What are the poles?
maglev train track
What is a guideway?
discovered that moving a magnet around or through a loop of wire produes electricity (2 people)
Who were Joseph Henry and Michael Faraday?
liquid or paste substance that conducts electricity
What is an electrolyte?
material that can work as a conductor or insulator
What is a semi-conductor?
What is lightning?
Attracting
What are opposite poles?
Nationality of scientists who developed the first practical maglev system
What is American?
discovered adding a metal core to a coil of wire increases magnetism
Who was William Sturgeon?
Repelling
What are the same poles of a magnet?
contains the built in memory of a computer
What is ROM?
Only 1 flow path
What is series circuit?
What is the magnetic field?
Country that uses maglev trains
What is Japan?
measures how much of a current flows through a given part of a circuit in 1 second
What is an amp?
uses magnet to convert motion to electrical energy
What is a generator?
an integrated circuit
What is a microchip?
More than 1 flow path
What is parallel circuit?
The area of magnetic force around the earth
What is the magnetic field?
means to rise or float
What is levitate?
Measures the amount of electrical push
What is a volt?
material that reduces the flow of electricity
What is a resistor?
small circuit with all its components in a single unit
What is an integrated circuit?
a conductor that can open or close a circuit
What is a switch?
magnetic force is weakest here
What is the center of a magnet?
maglev trains do not cause this
What is pollution?
measures power or how fast work is done
What is a watt?
this magnet requires a power source
What is an electro-magnet?
what the brain of a computer is called
What is the CPU?