Movement Of Electrons
An object with negative charge
what is excess electrons
Type of equation Coulombs law and Universal Law of Gravitational Field are
What is Inverse Square law
Electrical Field Lines are directed into
Newtons 3rd law
What is Equal and opposite forces
Unit of Electrical Field strength
What is Newtons per Coulomb
A negatively charged rod is brought close to, but not touching the top of an electroscope.
what is Electrons move to the bottom of the electroscope
2 electrons are placed a distance of 1 meter apart what force do they feel?
What is 2.3x10^-28N
Electrical Field lines are pointed into
Negative Charges
When 2 objects collide, what is conserved?
What is momentum & energy
What is in-between them
A silk rod is rubbed with rabbit fur, the fur gains a positive charge
Electrons are transfered from fur to rod
If you have 2 particles that are some distance away and experience a force F. both charges double their charge. How much larger is their new force
what is 4 times as great
the meaning of the density of electrical field lines
What is electrical field strength
Name 3 scalar quantities and 3 vector quantities
Scalar:distance, speed, time, all forms of energy
Vector:Velocity, Force, Momentum, Impulse, Acceleration, Displacement
When you have 2 same charges where is the electrical field the strongest?
What is opposite sides of the charges
A student walks across a carpet gaining a negative charge then receives a shock touching a door handle
Electrons are picked up from the carpet then transferred to the door handle.
If you have 2 particles that are some distance away and experience a force F. The distance between them this increased by a factor of 4. What is the new force they experience?
What is a factor of 1/4
Draw 2 opposite charges
lines going out of positive charge into negative charge
Steps for solving a forces problem
1)Equilibrium or not
2)FBD
3)Separate into X and Y
4)Solve for missing varibale
An electron is placed near a large negative charge. It receives a force of 2x10^25N. What is the strength of the electrical field and what direction is it going
What is 1.2x10^44N/c and away from the negative charge
A balloon is rubbed against someone's head and then stuck to a wall.
Electrons are transferred to the balloon, Electrons in the wall are moved away from the ballon
If you have 2 particles that are some distance away and experience a force F. one charge is increased by a factor of 3 and the distance between them in increased by a factor of 3. What is the new force they experience?
What is 1/3 the force
Draw 2 opposite charges
What type of energy is associated with friction, what is it called, what does it do to objects in a problem
Thermal or Internal Energy. Heats object up and brings to rest.
Where is the electrical Field strength the strongest in a parallel plate
What is it is even between the plates