The Rules
What happens between opposite charges? What about like charges?
Opposites attract while likes repel
Polarization occurs through what process?
Induction
This person was the first to discover that lightning and static electricity in the laboratory were the same phenomenon.
Benjamin Franklin
What is k?
9 x 10^9 Nm^2/C^2
Both protons and electrons share....?
The same elementary charge e value
What are neutral objects?
Objects that have same amount protons as electrons = net charge = 0
What is charge by conduction?
The process in which there must be a touch or a spark from the object doing the charging to the object being charged.
Negative charges exert what field lines?
Inward field lines
What machine or apparatus was built to study the electrostatic force between objects?
The torsion balance
What term describes the total charge (Q) with the total number of electrons and elementary charge?
Quantinization
What are free electrons?
Negatively charged particles that can move freely between atoms and cause an object to become charged.
Rearrange the Coulomb's Force Equation to find charge (q) when we are given equal charges.
q1=q2=q
q = sqrt(Fr^2/k)
What type of charging is induced without contact?
Induction
Coulomb's Law is very similar in form to what law?
Newton's Law of Universal Gravitation
What main law relates to both Force and Electric Fields?
E = kq/r^2
Inverse Square Law
What two factors that affect the force between two electric charges?
the amount of charge and the distance between them
What phenomena describes the separation of charges in an object?
Polarization
What charge exerts field lines in a outward direction?
positive charge
Of the three types of particles that make up an atom, this one does NOT feel the electric force.
neutron
Rearranging the electric field equation E = kq/r^2, find the formula for distance.
r = sqrt(kq/E)
An object loses 3 electrons. What is the object’s net charge in terms of e?
+3e
What part of Ben Franklin's Kite was charged via conduction?
The wet string enabled the key to be charged
Who came up with Coulomb's Law? (Full name)
Charles de Augustine Coulomb
How are charges determined? and Where?
By the mobility of electrons in the valence shell
In a field diagram, the strength of the electric field is given by what?
The density or how close field lines are