Chico test last
Charges: -2.0 x 10^4 / 8.0 x 10^4 Distance: .3 m
1.6 x 10^4 N attractive
Charge 6 uC / -5 uC Distance 5 cm What is the net force of sphere b on a
1080 N
If the quantity of charge on each sphere is doubled what happens to the force
4F
How many excess electrons are present for an object that has a charge of -1 coulomb
6.3 x 10^18 electrons
A positively charged body must have
A deficiency of electrons
An electric device that can store both electric charge and electric energy
Capacitor
The SI unit of charge is the
Coulomb
Who found the math relationship between electric fields and forces
Coulomb
Picture with the most lines has the greatest magnitude
D
Two objects are rubbed together. What is likely to transfer
Electron
Two objects are rubbed together. Which particle is likely to transfer
Electron
Image with a machine thing
Elementary charge
The magnified of the amount of charge on a proton or electron is called
Elementary charge
T/F an object that has become negatively charged has lost protons
False
T/F increasing the distance between two charges in a system will increase the force acting between those charges
False
T/F positive charges accelerate in the direction of increasing electric potential
False
Electrostatic forces are ......... rather than .............
Field forces / contact forces
Find elementary charge (add the numbers) -4 -10
Find elementary charge (add the numbers) 2 10
The process of getting rid of excess charge
Grounding
The charging of an object without direct contact is referred to as charging by
Induction
The electric force between two charges is
Inversely proportional
What is a good conductor
Metal
What scientist measured the charge of a single electron
Millikan
Picture I forgot what it looks like
Opposite A positive b negative
Two positive charges
Repel each other
A material that as properties that intermediate between those of a good conductor and a good insulator and can be fine-tuned to display almost any desired degree of conductivity
Semiconductor
Two protons are located one meter apart. Compared to the gravitational force of attraction between two protons, the electrostatic force between the proton is
Stronger and repulsive
Some dumb picture
The strength, the intensity of the electric field, is shown by the spacing of the lines
T/F When a metallic surface has become charged, the free charges will spread themselves out equidistantes
True
T/F decreasing the magnitude of the charges in a system will decrease the force acting between those two charges
True
T/F the direction of an electric field is away from a positive charge and toward a negative charge
True
T/F the total charge of a dipole is zero
True
The unit equal to one joule per coulomb
Volt
Two electric charges with the same sign
repel each other
