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Key Electricity Term

Physical Science

QuestionAnswer
Static Electricity Net accumulation of electric charges on an object
Conductor Allows easy flow of electrons
Insulator Restricts the ease of of flow in regards to electrons.
Electroscope Device used to detect electric charges
Induction from the positively charged surface of Earth Causes positive and negative charges to build up in clouds.
The direction electrons flow From objects with higher potential energy to those with lower potential energy.
One thing necessary to keep current flowing. Unbroken path for electrons to follow
Function of the carbon rod that runs down the center of a dry cell Conduct electrons between materials involved in the chemical reaction
Observation about the current in a metal conductor was the basis for Ohm's law Current depends on resistance and potential difference.
Determines the amount of energy an appliance uses Power rating and the number of hours per day it is used
To calculate the electrical power usage for an appliance Values of the current and voltage
How does an electron exert a force on another charged particle? Through the interaction with the particle's electric field.
An object becomes positively charged when? Loses electrons.
When two negative charges are brought close together what happens? Repulsion
As the distance from a charged particle increases, the strength of the electric field? Decreases
Example of an insulator Wood
The difference in potential energy per unit charge between two electrodes is measured in Volts
The difference in energy carried by electrons at different points in a circuit will determine the Voltage
Resistance in an electrical wire causes electrical energy to be converted to Thermal Energy
These types of wires that tend to have the least amount of electrical resistance? Thick
Electrical energy is measured kilowatt-hours
Created by: Dr.Allee
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