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Electricity - Coggle Diagram
Electricity
Materials can become electrically charged
Electric charge is a property of matter
Electric Charge
Electric charge is a property that allows an object to exert an electric force on another object without touching it
Electric Field
The space around a particle through which an electric charge can exert this force
Static charges are caused by the movement of electrons
Static Charge
A static charge is a buildup of electric charge in an object caused by the presence of many particles with the same charge
Charging by Contact
How Materials Affect Static Charging
Charging by Induction
Induction
The buildup of a charge without direct contact
Charge Polarization
Technology uses static electricity
Charges can move from one place to another
Static charges have potential energy
Electric Potential Energy
Electric Potential
Electric Potential
the amount of electric potential energy per unit of charge at a certain position in an electric field
Volt
One volt is equal to one joule of energy per coulomb of charge
Charge Movement
Lightning
Materials affect charge movement
Conductors and Insulators
Conductor
A material that allows an electric charge to pass through it easily
Insulators
A material that does not easily allow a charge to pass through it
Resistance
Electrical Resistance
The property of a material that determines how easily a charge can move through it
ohms
Electrical resistance is measured in units called
Superconductors
Grounding
Grounding
Grounding means providing a harmless, low-resistance-a ground-for electricity to follow
Electric current is a flow of charge
Electric charge can flow continuously
Current, Voltage, and Resistance
Ampere
The standard unit of measure for current (amp)
Ohm's Law
Ohm's Law
The relationship between volts, ohms, and amps
Current = Voltage / Resistance I = V / R
Measuring Electricity
Electric cells supply electric current
Electrochemical Cells
Electric Cell
Produces electric current using the chemical or physical properties of different materials
Solar Cells