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Electricity and Magnetism - Coggle Diagram
Electricity and Magnetism
1
Electricity
Materials can become electrically charged
Static charges are caused by the movement of electrons
Charging by contact
How materials affect static charging
Charging by induction
Charge polarization
Technology uses static electricity
Electric charge is a property of matter
Charges can move from one place to another
Static charges have potential energy
Electric potential energy
Electric potential
Charge movement
Lightning
Materials affect charge movement
conductors and insulators
Resistance
Superconductors
Grounding
Electric current is a flow of charge
Electric charge can flow continuously
Current, voltage and resistance
Ohm's law
Measuring electricity
Electric cells supply electric current
Electrochemical cells
Solar cells
2
Circuits and Electronics
Circuits make electric current useful
Circuits are constructed for specific purposes
Circuit can have multiple paths
series circuits
Parallel circuits
Circuits convert electrical energy into other forms of energy
Electric tech is based on circuts
Electronics use coded information
Binary code
Digital information
Analog to digital
Computer circuits process digital information
Integrated circuits
Personal Computers
Computers can be linked with other computers
The origin of the internet
The internet today
Charge needs a continuous path to flow
Electric charge flows in a loop
The parts of a circut
open and closed circuts
The current follows the path of least resistance
Short circuts
Grounding a circut
Safety devices control current
How fuses work
Other safety devices
3
Magnetism
Current can produce magnetism
An electric current produces a magnetic field
Electromagnetism
Making an Electronagnet
Uses of Electromagnets
Motors use electromagnets
Motors
Uses of motors
Magnetism can produce current
Magnets are used to generate electric current
Generating an electric current
Direct and alternating currents
Magnets are used to control voltage
Generators can supply electrical current
Generators provide most of the world's energy
Electric power can be measured
watts and kilowatts
Calculating energy use
Magnetism is a force that acts at a distance
Magnets attract and repel other magnets
Magnetic poles
Magnetic fields
Magnetism
Some materials are magnetic
Inside magnetic Materials