Facts
Opposite charges will __________ each other.
Attract
A particle with no charge must be a(n) _________.
Neutron
What equation do you use to solve for electric field strength?
E=F/q
A proton is about to be placed near to an electron that is .5 m away. Once the proton is placed, it will move to be...
a. closer than .5 m to the electron
b. still .5 m away from the electron
c. farther than .5 m away from the electron
a. closer than .5 m to the electron
The ___________ created from an electric field can be either attractive or repulsive.
Force
An electric field can be modeled by using vectors called __________ __________ _________.
Electric Field Lines
What variable is on the top of the "equation triangle" for the electric field strength equation?
Force, F
A diagram shows a proton and an electron placed near each other. The field lines connecting them...
a. will have arrows pointing from the electron towards the proton
b. will have no arrows because the charges cancel
c. will have arrows pointing from the proton towards the electron
c. will have arrows pointing from the proton towards the electron
Like charges will __________ each other.
Repel
An electric field is an invisible force field that surrounds a(n) _________ __________.
Charged Object
A charge of 4.5x10-5 C is placed on an electric field with a strength of 6 N/C. What is the force on the charge?
(use scientific notation)
2.7e-4 N / 2.7x10-4 N
You can see the electric field lines for an unknown charge. They have arrows pointing towards the charge. Is the charge positive or negative?
Negative
A proton has electric field lines with arrows pointing _________ from the center charge.
Away
What are the units for electric field strength "E" in the
electric field equation?
Electric Field Strength (N/C, Newtons/Coulomb)
A force of 70 N acts on a charge. If the charge is 0.013 C, find the strength of the electric field.
(use scientific notation and round to the nearest tenth)
5.4e5 N/C / 5.4x105 N/C
Describe the electric field line diagram for a proton.
Positive charge, field lines with arrows pointing outwards.
An electric field gets stronger when the distance from the charge __________.
Decreases
Charge is represented by the letter ____.
q (lower case)
The strength of an electric field is 34 N/C. The electric force is .017 N. What is the magnitude of the charge?
(use scientific notation)
5e-4 q
Describe the electric field line diagram for an electron.
Negative charge, electric field lines pointed inwards towards center.