Charges & Charge Transfer
The SI unit for charge
What is a Coulomb?
Newtons
What is the unit of electric force?
Defines the force per unit charge at all locations in space around a charge distribution.
What is the Electric Field?
The reason a balloon can become charged by rubbing it on hair.
(what is) the balloon holds on to its electrons more strongly than hair so it can steal electrons
The capitol of France
What is Paris?
Material through which electric charge can easily move.
What is a conductor?
The name of the law that gives the force between charged particles.
Coulomb's law
A charge distribution has electric field lines pointing out of it. This is the net charge.
What is positive?
An example of an insulator and a conductor.
what is ...
The capitol of Colombia.
What is Bogota?
Material through which a charge does not move.
What is an insulator?
The force between two electrically charged particles has this type of proportionality to the distance between them
What is inverse square proportionality
The two things that electric field lines tell you.
What is the relative strength of the field and the type of charge?
What does the sign of the electrostatic force tells us.
(what is) whether the force between particles is attractive or repulsive?
The capitol of Nicaragua.
What is Managua?
The separation of charge induced by nearby excess charge.
What is polarization?
A particle with charge 2 C and a particle with charge 5 C are separated by a distance of 2 m. This is force felt by each of the particles (in terms of k).
what is (2.5)k Newtons?
Draw the field lines for a 5 C charge and a 10 C charge placed near each other.
For correct answer the lines must not join together and the 10C charge must have twice as many lines coming from it.
Draw the E field lines for a +2q charge and a -q charge that are near eachother.
Field lines look similar to a dipole except there are double the amount of lines leaving the +2q charge compared to the number of lines meeting at the -q charge.
The capitol of Croatia.
What is Zagreb?
The way in which the charge of the proton is related to the charge of the electron.
(what is) they have the same magnitude but opposite in sign. The electron is negative, the proton positive.
The factor by which the force between two point particles changes when you halve the distance between them.
what is 4?
The strength of the electric field 10 cm away from a 4 C charge. Can be given in terms of k. Must have units of N/C
(k)(4)/(.12) = 400k N/C
The factor by which the force between two point particles changes when you quadruple the distance between them.
what is 1/16th?
The capitol of Somalia
What is Mogadishu?