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Charges in an electric field have a _______________ energy due to the field.
potential
Electrical potential (V) is the __________________ provided by an electric field for every _________________ in the field.
electric potential energy, coulomb of charge
Ue = qVe
The value of electric potential at a point is equivalent to the _________ per __________ required to bring a positive test charge to that point from infinity.
work, coulomb of charge
V = w/q
Electric potential is also known as __________, and has units of ___________
Voltage, J/C
Electric potential is a __________ quantity
scalar
Electric potential is more ____________ near a positive charge
positive
The zero value of electric potential a uniform electric field is ____________
arbitrary
The electric potential in a region of space surrounding a point charge (and charged sphere) can be calculated with _________________. Should the sign of q be used?
V = kq/d, YES
Positive charges always accelerate towards more _____________ potentials.
negative
The electric potential is _______________ everywhere inside a charged conductor, and its value is the ___________ as at the surface of the conductor.
constant, same
Since the zero point of an electric potential is arbitrary, it is more useful to calculate the ___________________, due to the motion through a field. Equation = ___________.
change in electric potential energy, ΔUe = qΔV
When a charge moves freely through an electric field, energy is ______________. Equation = __________-
conserved
KEi + Uei = KEf + Uef
When a charge is moved through an electric field by an external force, the work done by the external force is equal to that charge's change in __________________.
potential energy
When two charged objects are in contact with each other, their electric potentials must be __________________.
equal to each other
Equipotential isolines connect points at all locations of _________ electric potential (energy) within an electric field.
equal
Equipotential lines have _________________ values closer to positive charges
higher (more positive)
Equipotential lines are always drawn ________________ to the direction of the electric field at that point.
perpendicular
Moving any charge along an equipotential line _______________ require work to be done, as the energy of the charge ________________.
does NOT, does not change
Moving a charge from one equipotential line to another requires _______________
energy transfer (work)
Moving a ____________ (negative) charge from lower to higher equipotential lines requires work to be done on the charge, as the charge's energy _______________ (decreases). The amount can be calculated by ___________, and does not depend on the actual path taken.
positive, increases, ΔU = qΔV
When equipotential lines are closer together, the electric field in that region is _________________.
stronger
The electric field is the ___________ of change of electric potential in space:
E = ΔV/Δr
RATE
Two oppositely charged plates produce a ______________ electric field between them, so the equipotential lines are ______________ to each other and _____________. Equipotential lines around a charge (or charged sphere) are concentric circles.
constant, parallel, equally spaced
