53 terms

Abeka Physics chapter 22


Terms in this set (...)

F = |q1||q2| / r^2
The law of lecturing force formula
E = (k)|q| /(qo)
Formula for the strength of a field at a given distance
8.99 x 10^9
Value of k in Coulomb's law units of C, N, and M are used
8.85 x 10^-12
Value of (epsilon)o
E = F/qo
Equation an electric field
(22.1) Discharge
Sudden release of accumulated electric charge
Any object with no electric charge is said to be ____
Static electricity
A stationary charge is called _____ _________
Law of electric charge
What law states like charges repel and unlike charges attract?
An atom that has lost (an) electron(s) is a ______
An atom that has gained (an) electron(s)
What is the flow of charge from one place to another?
An object that transmits current efficiently are _________
Silver, gold, copper, aluminum
What are the four best conductors
Responsible for the flow of charge in a solid conductor
Describes the electrons of a conductor
An object that does cannot transfer a charge
Solids that are poor transmitters of current
Flow of electrons (current) through a conductor or form one object to another
Conduction results in a temporary ____ charge on the neutral body as on the charged object
An excess of electrons results in a ______ charge
The production of a local charge by the influence of a charged body at a distance
A deficiency of electrons results in a ______ charge
Wire or conductor in contact with the earth
Induction results in a long-lasting _______ charge on the neutral object than on the charged material
A simple device used to test the charge of an object
Extent to which a medium allows an electric field to act between charges
Greek letter symbolizing Permivity
Coulomb (C)
The SI unit of charge
Law of electric force
The formula used to determine
1.602 x 10 ^-19
Value of a single proton or electron
(22.2) Electric field
One charge's influence on another charge at some distance
N / C
Unit for an electric field
Test charge
Small charge signified by qo
Stronger, weaker
The lines of force are distributed so that they are closer together where the field is _______ and farther apart where the field is ______.
Lines of force
Orderly patter regarded as a map of the rod's electric field
The direction of a field strength is ________ to a line or force at every point
The lines of force are _____________ to every charged surface
Positively, negatively
The lines of force originate in a ________ charged body and terminate in a ________ charged body
Uniform field
A field in which the field strength is the same throughout
(22.3) electric potential energy
The work done against a field to move the total charge from the ground
Electric potential
Total energy per number of coulombs
Electric potential difference
Work required of an external force to move a unit positive charge
Sliding scale of comparison; change in the loss of potential energy
Electric potential energy
Symbolized by E
____ electric field remains within the body of a conductor
All charge is confined to the _______ of the conductor
Sharper; point
In the conductor is not a sphere, the charge is more concentrated whenever the contour is a _____ curve and most concentrated wherever the contour comes to a corner a _____
Corona discharge
Gradual discharge to the air producing a dull glow; also called st. Elmo's fire
Unit indicating
Unit indicating
Equipotential lines
Can be drawn through points having the same electric potential
The conductor must have an ________ surface