CHARGE (in terms of e and p)
INS/COND/POLAR
Coulombs Law applications
COULOMBS LAW
100

An electrically neutral atom is an atom which....

What is balance of protons and electrons

100

Materials through which electrons can move easily are classified as...

What is a conductor

100

The q value in Coulombs equation is in units of what?

Coulombs

100

This is the only thing in Coulomb's equation that never changed

What is a constant (k)

200

An electrically charged atom can be distinguished from an electrically neutral atom in that the charged atom

What is imbalance of protons and electrons (unequal)

200

Does not allow charge to freely move/migrate to the point of charge

Insulator

200

The unit d in Coulombs equation is in units of what?

meters

200

How does the force change when both charges are doubled and the distance is doubled

What is remains the same/one

300

This is the name of an atom that has an unbalanced number of electrons and protons, resulting in a charge

What is an ion

300

What happens to electrons when charging two objects by rubbing them together

Some of the electrons must have transferred to the other object

300

The F is measured in units of what in Coulombs equation?

newtons

300

Decreasing the charge of the objects has this effect on the electric force

What is decreases the force

400

What is the charge of 1 electron (E)?

1.602 x 10-19 Coulombs

400

Rabbit fur is rubbed against a glass rod, which of these receives extra electrons?

the fur gets more electrons

400

If you double q2 and keep r the same, what happens to the force between charges?

doubles

400

increasing the force but maintaining the distance between charges means what has to change?

the charges have to increase

500

3 charges are brought into contact

X= +2 x 10-6 C  Y= +4 x 10-6 C  Z= +6 x 10-6 C

What will the net charge be AFTER the contact


+4 x 10-6 C because they will have an equilibrium

500

 When a glass rod is rubbed with silk what is the net new charge on the glass rod?

positive

500

If you double the r value and keep the q values constant, what happens to the Force?

decreases by 1/4

500

What does the constant K equal?

9 x 109

M
e
n
u