Charge and Coulomb's Law

Conductors

In these materials (usually metals) the charge is carried through by the free electrons that metals have because of their metallic bonds.

spread out over the entire object

When a charge is placed on a conductor it will immediately _____________.

electrons

In an insulator. the charge can’t go anywhere in these substances because there’s nothing to carry the charge. They have their ___________ tightly bound in their chemical bonds. 

Electrolytes

These are liquid solutions that can conduct electricity. 

Ions

What does an electrolyte posses that transfer charge?

Conduction and Induction

What are the methods that can be used to charged an object?

Grounding and Splitting of Polarized Object

What are the two ways to ‘create’ a charge via induction?

Coulomb

What is the basic standard unit of a charge (q)?

1.6 × 10^-19

What is the value of elementary charge (e)?

1 / 1.6 × 10 ^ -19

How do you get the number of electrons require to equal 1 charge Coulomb?

point charges

These are the assumed charge (q) concentrated into a small area

When we have more than two charges in proximity, the resultant force on a charge is the vector sum of the forces exerted on it by other charges.

Define the superposition principle

Electrostatics

It is the study of electric charges that can be collected and held in one place.

J.J. Thomson

He is the one who discovered that all materials contain light, negatively charged particles that he called electrons.

Ernest Rutherford

He discovered that the atom has a massive, positively charged nucleus.

Charge

It is a process of transferring electrons.

Law of Conservation of Electic Charg

According to this law, you can never create a net electric charge. Instead, charge can only move frm one to another.

copper, aluminum, plasma, graphite

Give 4 example of conductors (from ppt)

Air

_____ is an insulator; however, under certain conditions, charges move through air as if it were a conductor.

Henry Cavendish

In 1770s, he showed that electric forces must obey an inverse square force law.

electroscope

It is a scientific device that is used to detect the presence of an electric charge on a body

Charging by Conduction

Charging a neutral body by touching it with a charged body

Yes, same number of electron and proton

Is an object considered electrically neutral when it is polarized? Why or Why not?

q = n e

Formula for net charge of an object

charge

Electroscope is a device used for determining ________. It consists of a metal knob connected by a metal stem to two thin, lightweight pieces of metal foil, called leaves.

leaves

Electroscope is a device used for determining charge. It consists of a metal knob connected by a metal stem to two thin, lightweight pieces of metal foil, called ________.

metal knob

Electroscope is a device used for determining charge. It consists of a __________ connected by a metal stem to two thin, lightweight pieces of metal foil, called leaves.