Chapter 15

Question 1

What is electric charge?

Answer 1

Electric charge indicates if a body has an excess or a deficiency of electrons

Question 2

What is a conductor?

Answer 2

A conductor is any substance through which electric charge can flow

Question 3

What is an insulator?

Answer 3

An insulator is any substance through which electric charge cannot flow

Question 4

What is a point discharge?

Answer 4

A point discharge is the phenomenon where ions in the air are either strongly attracted or repelled from the tip of a charged conductor and move towards or away from it

Question 5

What is Coulomb’s Law?

Answer 5

The electrostatic force between two point charges is proportional to the product of their charges and inversely proportional to the square of the distance between them

Question 6

What is an electric field?

Answer 6

An electric field is the region of space in which electric charges at rest experience an electrostatic force

Question 7

What is an electric field line?

Answer 7

An electric field line is the line along which a positive charge would move if placed in the electric field

Question 8

What is an electric field strength?

Answer 8

The electric field strength at a point in an electric field is the force per unit positive charge at that point