Coulomb's Law
Vocabulary
Formulas
General Electrostatics
Problem Solving
100
What is Coulombs law?
Coulomb's law states that the magnitude of the electrostatic force between two point charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.
100
Define conduction
object or type of material that allows the flow of an electrical current in one or more directions.
100
What is F?
electrical force
100
What is the electric force?
Charge is a fundamental property that makes charged particles feel this
100
A balloon with a charge of 4.0x10^-5C is held a distance of .10M from a second balloon having the same charge. Calculate the magnitude of the repulsive force.
F=((9x10^9)(4x10^-5)(4x10^-5))/(.1m)^2=1440N
200
Electrostatic Force and Charge are ___________ proportional.
directly
200
Define electrostatics.
the study of stationary electric charges or fields as opposed to electric currents.
200
ef constant
9x10^9 N(m^2/c^2)
200
What is the product of the charges?
The magnitude of the electric force is proportional to this.
200
A +5.0uC charge and a -6.0uC charge experienced an attractive force of -.72N. Determine their separation distance.
r = .61m
300
What is the neutron?
Of the three types of particles that make up an atom, this one does NOT feel the electric force.
300
Define electrical forces.
attractive or repulsive force between two charged objects.
300
electron
-1.6x10^-19
300
What is field lines?
Point in the direction that a positive test charge would accelerate if placed upon the line
300
The force between two identical charges separated by 1 cm is equal to 90 N. What is the magnitude of the two charges
1.00×10^6
400
What is Newton's Law of Universal Gravitation?
ALL objects attract each other with a force of gravitational attraction
400
Define conservation of Charge
a principle stating that the total electric charge of an isolated system is fixed
400
proton
1.6x10^-19
400
Test charge
charge with a magnitude so small that placing it at a point has a negligible affect on the field around the point
400
Two neutrally charged bodies are separated by 1 cm. Electrons are removed from one body and placed on the second body until a force of 1×10-6 N is generated between them. How many electrons were transferred between the bodies?
6.59×108 electrons were transferred
500
Who was the first to discover coulomb's law?
Henry Cavendish
500
define electrically polarization
when an electric field distorts the negative cloud of electrons around positive atomic nuclei in a direction opposite of the fields
500
Electrostatic Force
F=k(q1q2/r^2)
500
what forces are repulsed?
positive(+)
500
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Free points
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