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Electricity - Coggle Diagram
Electricity
Materials can become electrically charged.
Electricity is a property of matter.
Electric charge: 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 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.
How a Photocopier Works
Charges can move from one place to another.
Static charges ahve potential energy.
Electric Potential Energy
Electric Potential
Electric potential: the amount of electric potential energy per unit charge a t a certain position in an electric field
volt: equal to one joule of energy per coulomb of charge
Charge Movement
Lightining
How Lightning Form
Charge Separation
Charge Buildup
Static Discharge
Materials affect charge movement.
Conductors and Insulators
Conductor: a material that allows an electric charge ot pass through it easily
Insulator: a material that doesn't easily allow a charge to pass through it
Resistance
Resistance: the property of a material that determines how easily a charge can move through it
Ohms: electrical resistance is measured in units called ohms
Superconductors
Grounding
Grounding: providing a harmless, low-resistance path for electricity to follow
Electricity current is a flow of charge.
Electric charge can flow continuously.
Electric current: another name for a flow of charge
Current, voltage, and resistance
Ampere (amp): the standard unit of measure for current
Ohm's Law
Current = Voltage / Resistance
Measuring Electricity
Electric cells supply electric current
Electric cell: produces electric crrent using the chemical or physical properties of different materials.
Electrochemical cells
Primary cells
Storage Cells
Solar Cells