Chapter 12 - Electrostatic Phenomena

Question 1

What is created when you rub some objects together?

Answer 1

charge

Question 2

What is electrostatic force?

Answer 2

The force that is exerted by one stationary charge on another

Question 3

What are semiconductors?

Answer 3

A solid chemical element or compound that conducts electricity under certain conditions, which also makes it an insulator

Question 4

What is charging by induction?

Answer 4

Using a charged object to charge another object without touching

Question 5

What is an electric dipole?

Answer 5

An electric dipole is two charges of equal magnitude but opposite sign, separated by a small distance

Question 6

what does it mean when a material is polarized?

Answer 6

A material is said to be polarized if the positive and negative charges within the material become slightly displaced from one another due to an electric field

Question 7

What is coulombs law?

Answer 7

The electrostatic force between two charged objects is proportional to the quantity of each of the charges and inversely proportional to the square of each distance between the charges

Question 8

What is the change in electric potential equal to?

Answer 8

The change in electric potential is equal to the change in electrostatic potential energy per unit of positive charge
ΔV = ΔPE/q

Question 9

For a uniform electric field, what is the relationship between the magnitude of the electric field and the change in electric potential?

Answer 9

ΔV = Ed