Scientist
Ways to charge
Units
Field Lines
Random Questions
100
Showed lightning is electricity and took the charge of a Leyden Jar he used to kill turkeys himself.
Who is Ben Franklin?
100
The charged left on a neutral object by conduction compared to the charged rod touching the neutral object.
What is the SAME charge as the charged rod?
100
The charge on 6.25 billion billion electrons or protons.
What is a coulomb?
100
The direction of a magnetic field line is always the direction THIS MONOPOLE would move.
What is A NORTH MONOPOLE? Thus away from the north pole and toward the south pole.
100
If you doubled the charge on one object and tripled the charge on the other but kept the distance between the objects the same, the force between them would...
What is "Be SIX times as much"?
200
Discovered that an electron had a charge of -1.6 X 10^-19 coulombs with his famous Oil Drop Experiment that suspended a charged oil drop between two charged plates by regulated the voltage on the plates.
Who is Millikan?
200
The charge left on a neutral object compared to the charged object when charged by induction.
What is The Opposite Charge as the charged object has.
200
The unit used to measure the capacitance of a capacitor.
What is a Farad?
200
The direction of an outside electric field is always the direction this charge would move.
What is A POSITIVE charge? (Thus the outside field always away from the positive object and toward the negative object.)
200
If you quartered the distance between two charged objects but kept their charges the same, the force between them would...
What is BE SIXTEEN TIMES AS MUCH?
300
Discovered the law that measures the force between two charged objects knowing the charge on each object and the distance between the objects.
Who is Coulomb?
300
How to charge an infinite amount of neutral objects without having to recharge the charged object being used to aid with the charging.
What is either Induction or Electrophorus?
300
The unit used for electric pressure also known as electric potential.
What is a Volt?
300
The way one can tell where the strongest magnetic or electrostatic field is in a field diagram...
What is "Where the densest fields lines are" (or where there exist the most field lines in a uniform square region)
300
If you changed two magnets so as to double the magnetism on the first but replaced the second magnetic with one eight times as strong BUT held the magnets FOUR times further apart, the magnetic force between them would...
What is THE FORCE BETWEEN THEM WOULD NOT CHANGED? (because 2X8/4^2 = 16/16=1)
400
They invented electrostatic generators. The first had a large rubber band turning and using induction to carry the electrons up to a large metal sphere. The second had a crank you needed to turn clockwise to rotate two large plastic disk opposite directions with copper brushes and two Leyden Jars to store the charge until you brought two small metal spheres together to discharge them.
Who is Van de Graaff and Wimshurst?
400
The four steps necessary to charge an electroscope positive by induction.
What is 1) Bring a negative object close 2) ground the top of the electroscope by touching it with the other hand 3) remove the hand first 4) remove the charged negative object last
400
The unit used for electric current. It takes less than .25 of these through your heart to kill you.
What is an Ampere?
400
Something magnetic or electric field lines can NEVER DO.
What is FIELD LINES CAN NEVER CROSS (NEVER INTERSECT)?
400
When you lower the temperature of this so low as to cause no resistance to electron flow within this substance, in turn causing a magnetic field that in turn can suspend a magnet in this field
What is a superconductor?
500
He discovered the temperature at which different magnetic materials lost their magnetic properties due to the domains being scrambled by the kinetic energy of the molecules making up the material.
Who is Curie?
500
The steps on takes to charge by Electrophorous repeatively
What is 1) charge piece of insulation by rubbing with rabbit fur once 2) set neutral aluminum pie pan on insulation while holding the styrofoam cup taped to the center of it 3) touch the pie pan to remove electrons 4) pick up pie pan by insulating styrofoam cup 5) touch pie pan again to add electrons back, neutralizing the pan again 6) repeat steps 2-5 as often as you wish
500
The units on the Coulomb's Law constant so you end up with N and cancel out the meter^2 and the coulomb^2
What is a N m^2/c^2?
500
The direction of the magnetic field inside of a magnetic.
What is the direction of a magnetic field inside of a magnetic is from south to north s(o the entire field diagram is a continuous loop)?
500
Another name for a metal car, metal airplane, cage of death, any conducting surface that you are perfectly save inside of as the electric field always rest on the outside surface of it.
What is a Faraday Cage?
M
e
n
u