Static Electricity and Electric Fields

Question 1

A charged atom is caused by what?

Answer 1

The addition of electron(s) or the removal of electron(s).

Question 2

For every _______________ charged object, there must be a _____________ charged object.

Answer 2

positively; negatively

Question 3

The only way in which an object can acquire a net charge

Answer 3

Transfer from one object to another

Question 4

An object or substance that holds the negative charge more is said to have stronger

Answer 4

Electronegativity

Question 5

An object that is charged through friction or contact has what type of charge?

Answer 5

Negative

Question 6

Positive and negative charges separate within an object due to contact/proximity of a charged object and the rules of attraction

Answer 6

Polarization

Question 7

T/F: Charges within a polarized object remain separated after the charged object is moved away

Answer 7

False. Polarization is a temporary situation.

Question 8

How does a neutral object (i.e., paper) react to a charged object?

Answer 8

A neutral object will always be attracted to a charged object, whether negative or positive. Charges within a neutral object polarize to cause the attraction.

Question 9

Multiple-step process by which zones of positive and negative charge are created in an object, then electron build-up is routed out of the object, leaving a positively charged object

Answer 9

Induction

Question 10

Formula for Coulumb’s Law

Answer 10

F=kqq/r squared
k= constant, 9 * 10 to the 9th
qq= charge of each object
r squared=distance between two objects squared

Question 11

What would happen to the force of attraction if two objects are moved twice as far away?
What would happen to the force of attraction if two objects are moved three times as far away?

Answer 11

The force would become 4 times less.

The force would become 9 times less.

Question 12

What would happen to the force of attraction between two objects if the charge of the particle was doubled?

Answer 12

The force would be doubled.

Question 13

Formula for Electric Field

Answer 13

E=F/q
E= electric field - measured in Newton/Coulumb
F=force on the object
q=test charge

Question 14

What direction does an electric field have?

Answer 14

The same direction as the electric force on the charge.

Question 15

When visualizing an electric field, the number of lines represents what?

Answer 15

The magnitude of the charge.

Question 16

Electric Fields push positive charges _______________ and negative charges ___________________.

Answer 16

positive charges in the direction of the field;

negative charges in the direction opposite the field

Question 17

What tells the electrons which way/where to go?

Answer 17

The electric field.