PHYS101 – Mastering Electric Charge: From
Fundamentals to Fields and Forces
neutral - object with no net charge
charge model - 1. Frictional forces add/remove charge form object CHARGING IT-
2. 2 types of charge (plastic and glass)
3. Two like charges exert repulsive forces on each other... Two opposite exert attraction forces
4. Force between 2 charges = LONG-RANGE FORCES.... it increases as the qty of charge
increases, and decreases with longer distances
5. Neutral objects have equal plastic/glass charges. Rubbing them manages to separate them
6. Two types of material... Conductors/Insulators
7. Charge can be transferred from object to another by touch
charging - to charge an object, and proof is that it picks up small pieces of paper
discharging - removing charge from an object
conductor - material through or along in which charge moves easily
insulator - material through or along which charge remains immobile
charge quantization - the amt of charge on an object varies by small but discrete steps----- then,
means that charge cannot take any arbitrary values, but only values that are integral multiples of
the fundamental charge (charge of proton/electron)
ionization - process of removing an electron from the electron cloud to the atom
sea of electrons - negative charged gas or liquid moving around positively charged ion
cores
, ion cores - an atom or group of atoms in which the number of electron s is different from the
number of protons
current - motion of charge through a material
charge carriers - charges that physically move through material
grounded - object physically connected to earth through a conductor
charge polarization - slight separation of the positive and negative charges in a neutral object-
causing a net force toward an object (POLARIZATION FORCE)
electric dipole - 2 equal but opposite charges separated by small distance
charging by induction - method of charging object without touching it, inducing electrons to
move to one side, then splitting the conductor.. ending with one pos and one neg...ON
CONDUCTOR material
point charge - idealized material object with charge, mass but NO size or extension
field - a region in which each point is affected by a force. Objects fall to the ground because they
are affected by the force of earth's gravitational field -- The electrical flow is a scalar quantity,
defined as the number of electric field lines that cross at right angles, a surface
field model/Standard Mode - gauge bosons are defined as force carriers that mediate the strong,
weak, and electromagnetic fundamental interactions. Interactions in physics are the ways that
particles influence other particles.
source charge - charges that alter the space around them creating an eletric field
probe charge - positive test charge used to find the direction of the force it is experiencing at a
point
electric field line - a means to visualize the electric field.
uniformly charged - charges are evenly spread over the object
Fundamentals to Fields and Forces
neutral - object with no net charge
charge model - 1. Frictional forces add/remove charge form object CHARGING IT-
2. 2 types of charge (plastic and glass)
3. Two like charges exert repulsive forces on each other... Two opposite exert attraction forces
4. Force between 2 charges = LONG-RANGE FORCES.... it increases as the qty of charge
increases, and decreases with longer distances
5. Neutral objects have equal plastic/glass charges. Rubbing them manages to separate them
6. Two types of material... Conductors/Insulators
7. Charge can be transferred from object to another by touch
charging - to charge an object, and proof is that it picks up small pieces of paper
discharging - removing charge from an object
conductor - material through or along in which charge moves easily
insulator - material through or along which charge remains immobile
charge quantization - the amt of charge on an object varies by small but discrete steps----- then,
means that charge cannot take any arbitrary values, but only values that are integral multiples of
the fundamental charge (charge of proton/electron)
ionization - process of removing an electron from the electron cloud to the atom
sea of electrons - negative charged gas or liquid moving around positively charged ion
cores
, ion cores - an atom or group of atoms in which the number of electron s is different from the
number of protons
current - motion of charge through a material
charge carriers - charges that physically move through material
grounded - object physically connected to earth through a conductor
charge polarization - slight separation of the positive and negative charges in a neutral object-
causing a net force toward an object (POLARIZATION FORCE)
electric dipole - 2 equal but opposite charges separated by small distance
charging by induction - method of charging object without touching it, inducing electrons to
move to one side, then splitting the conductor.. ending with one pos and one neg...ON
CONDUCTOR material
point charge - idealized material object with charge, mass but NO size or extension
field - a region in which each point is affected by a force. Objects fall to the ground because they
are affected by the force of earth's gravitational field -- The electrical flow is a scalar quantity,
defined as the number of electric field lines that cross at right angles, a surface
field model/Standard Mode - gauge bosons are defined as force carriers that mediate the strong,
weak, and electromagnetic fundamental interactions. Interactions in physics are the ways that
particles influence other particles.
source charge - charges that alter the space around them creating an eletric field
probe charge - positive test charge used to find the direction of the force it is experiencing at a
point
electric field line - a means to visualize the electric field.
uniformly charged - charges are evenly spread over the object
