Electrical Fields
Electric Charge
Electrical Force
Calculations
Hodge Podge
100
The strength of an electric field is determined using this equation.
What is E =Force/charge (E = F/q)?
100
This is the charge of one electron.
What is 1.60x10-19C?
100
An Electric force (F) exists between two objects, both having the charge q. If the charge on one object is doubled to 2q, the force between the objects becomes this.
What is doubled?
100
Daily Double:
What charge does a test charge have when a force of 2.21 x 10-5 N acts on it at a point where the electric field intensity is 3.30 x 10-6 N/C?
Mrs. Hosler Checks
100
This is charging an object through direct contact.
What is charging by conduciton.
200
The SI unit for field strength (aka electric field intensity) is this.
What is Newtons per Coulomb?
200
Objects become electrically charged as a result of the transfer of these.
What are electrons?
200
Electrical and Gravitational force are similar in this way.
What is that they are both field forces?
200
An electric field of 2250 N/C is produced by a charge of 4.82x10-11 C. For this field strength, what is the distance to the charge?
Answer 1
200
This is charging an object without direct contact.
What is induction?
300
The strength of an electric field around a charged object depends on both of these things.
What is magnitude of the charge and the distance from the object.
300
A negatively charged rod is brought near a metal sphere that is not grounded. When the rod is taken away, the metal sphere will have this charge
What is no charge?
300
An Electric force (F) exists between two objects, both having the charge q and separated by a distance of r. if the distance is decreased to 0.5r, the force between the object will do this.
What is increase by a power of 4?
300
A glass ball has a charge of 2.5x10-6 C. A rubber ball has a charge of -5.0x10-6 C. They are separated by 5 cm. What is the magnitude and direction of the electric force between them?
Answer 2
300
If a positively charged rod is held near the knob of a neutral electroscope, this diagram would represent the distribution of charges
400
This is the charge of A.
What is negative?
400
Uncharged objects can be attracted by a charged object because the uncharged objects acquire a surface charge by this process.
What is polarization through induction.
400
Two point charges initally 2 cm apartt, are moved to a distance of 8 cm apart. This is the factor that the resulting electric force between them changes.
What is 1/16?
400
Freebie - everyone gets a point.
d
400
Try Again
500
DAILY DOUBLE
Draw an electric field diagram that would occur between two like charges with one being double the charge as the other.
Determined by Mrs. Hosler
500
This is how Millikan quantizesd the mass and charge of an electron.
What is he used the oil drop experiment which involves two charged plates and charged oil drop particles.
500
Daily Double
Mrs. Hosler creates.
Mrs. Hosler knows
500
Find the electric field at a point midway between two point charges of 30.0x10-9 C and 60.0x10-9 C that are 30.0 cm apart.(4)
Answer 5
500
Try Again