Assessment Statement

What are the two types of elctrical charge?

postive charges

and

negative charges

Assessment Statement

What does the law of conservation of electric charge state?

1) the net amount of electric charge produced in any process in zero

2) no net charge can be created or destroyed

Assessment Statement

What is the equation for the magnitude of the electric force that one object exerts on another?

F = (kQ₁Q₂)/(r²)

What are conductors?

What are insulators?

Conductors - materials that transport electrical charge; many electrons are free to move

Insulators - materials that don't easily transport electrical charge; few electrons are free to move

What is the difference being induction and conduction?

Conduction involves contact. Objects develop the same sign change.

 Induced charges do not involce contact. The charges are just separated within the object.

What is the SI unit of charge?

Coulomb (C)

What is the Coulomb constant (k)?

What is the charge on a electron (-e)?

k = 8.99 x 10⁹ N m² C^-2

-e = -1.6 x 10^-19 C

Test charges always have what type of charge?

a postive charge

What is the equation for the magnitude of an electric field (E)?

E = F/q = k(Q/r²)

Electric field lines near a postive test charge point _______ (direction).

outward

Electric field lines near a single negative charge point _______ (direction).

inward

Electric field lines start on ________ charges and end on________ charges.

postive; negative

Assessment Statement:

Define eletric field.

Electric field is defined as a region of space where a charged object exeriences a force due to its charge.