Charges
Charge Interactions
Conservation of Charge
Coulomb's Law
Electric Fields
100
Positively charged particles in an atom.
What are protons?
100
Materials that resist the flow of electrons.
What is an insulator?
100
6.25 × 1018 e
What is 1 Coulomb (C)?
100
Unit for Electrostatic Force
What is Newton (N)?
100
Electric field strength __________ as you move away from a charge.
What is decreases?
200
_______ and ________ are found in the nucleus of an atom.
What are protons and neutrons?
200
The process by which an object gains a charge when touched by a charged object.
What is conduction?
200
The electrical charge of a proton in elementary charges.
What is +1e?
200
8.99 x 109 N•m2/C2
What is k?
200
The charge of an object around which the electric field vector is directed inwards.
What is negative?
300
The net charge on a neutral object.
What is zero?
300
The process by which charges become polarized (separate) when you bring a charged object near another without contact.
What is induction?
300
A and B are identical spheres. The charge (e) on both spheres will be __ after they are brought into contact and then separated.
What is -1e?
300
Coulomb's Law is very similar in form to this law.
What is Newton's Law of Universal Gravitation?
300
Electric field lines are always __________ to the surface of the field.
What is perpendicular?
400
1.6 x 10-19 Coulombs
What is an elementary charge (e)?
400
The charge of an object which attracts a negatively-charged balloon and attracts a positively-charged balloon.
What is neutral?
400
Two identical spheres (A and B) are brought into contact.
Before contact, A has a charge of +3e while B has a charge of -5e.
The sphere that will receive electrons will be ____.
What is sphere A?
400
The electrostatic force between opposite charges is ________.
What is negative?
400
The charges of P and Q are ______________.
What is positive?
500
This item is commonly seen with induction and conduction problems.
What is an electroscope?
500
Object C attracts B.
Object D repels C.
Objects E attracts D but repels F.
Object F attracts A.
If A is negatively charged and B is neutral, ____ and ____ must be negative.
What are C and D?
500
When we say the charge is conserved, it means that the __________ between objects is the same before and after interaction.
What is net charge?
500
This graph best represents the relationship between ____________ and electrostatic force.
What are product of charges?
500
On a diagram, the strength of an electric field is shown by this.
What is the density/number of electric field lines?