Atomic
History
Basic Electrostatics
Coulomb's Law
Electric Fields
100
The three main subatomic particles.
What are protons, neutrons, and electrons?
100
Discovered the electrons and came up with the Plum-Pudding model of the atom.
Who is J.J Thomson?
100
What is the main reason for electrostatics?
What is separation of charge?
100
What is Coulomb's Law?
F = (k*q1*q2)/r2
100
Arrows point towards the charge.
What is a negative charge?
200
Has positive charge
What is a proton?
200
Experiment where alpha particles were shot at a thin sheet of gold.
What is the gold foil experiment?
200
Uses friction to create imbalance of charge.
What is the movement of electrons to and from neutral objects?
200
What is the relationship between force and distance?
Inversely related to the square
200
Where is the electric field weakest?
Furthest away from the charge.
300
1.6 x 10-19 C
What is fundamental charge?
300
Ernest Rutherford's conclusion from the gold foil experiment.
What is atoms are made up of mostly empty space with a small nucleus of protons?
300
Positive charged object.
What is the loss of electrons?
300
One charge of +43nC is 9 mm apart from a a charge of +76nC. What is the electrostatic force? k = 8.99x109
Force = 0.363 N
300
Draw two positive charges close to eachother and their electric field lines.
400
Has no charge.
What is a neutron?
400
Describes the planetary/Rutherford model.
What is a small dense nucleus of protons with electrons moving around it.
400
Two negatively charged particles will...
What is repel?
400
A force between a pair of .065 C charge is 15 N. What is the distance between them?
1,591.28 m
400
Draw a negative and positive charge and their electric field lines.
500
Subatomic particles that most easily moves between atoms.
What is electron?
500
JJ. Thompson's student.
Who was Ernest Rutherford?
500
The law of conservation of energy
What is that charge is not created or destroyed. It can be transferred.
500
A +10C charge is placed halfway between a +20C charge and a -30C charge that are 20cm apart. What is the net electrostatic force acting on the 6C charge?
1.79 x 1016 N
500
Name as many variables and their unit.
Force - Newton
Coulomb's Constant = N*m2/C2
Charge - C
Distance of separation - m
Energy - Joules
Work - Joules
Power - Watts
Electric Field - Newtons/Coulomb