Static Electricity

Question 1

electrostatics

Answer 1

the study of electrical charges that can be collected and held in one place

Question 2

static electricity

Answer 2

positive or negative charges on an object; electric charge built up in one place

Question 3

Four Fundamental Forces

Answer 3

1. Gravitational
2. Electromagnetic
3. Weak Nuclear
4. Strong Nuclear

Question 4

electric charge (static electricity)

Answer 4

the fundamental quantity that underlies all electrical phenomena.

Question 5

electric force

Answer 5

consists of the attraction between opposite charges and the repulsion between like charges.

Question 6

Charged objects will ____________ other charged objects.

Answer 6

either attract or repel

Question 7

Neutral objects will __________ charged objects.

Answer 7

always attract

Question 8

conservation of charge

Answer 8

the total charge of an object remains the same. Individual charges are never created or destroyed. Electrons are just transferred between objects.

Question 9

Some materials have a greater affinity for electrons than others. In other words, they will __________ their electrons easier than other materials.

Answer 9

hold onto

Question 10

Charges within an object can be __________ without being removed from the object.

Answer 10

separated (polarized)

Question 11

charge by conduction

Answer 11

charging a neutral body by touching it with a charged one

Question 12

charge by induction

Answer 12

charging a neutral body by bringing it near a charged one but not touching it

Question 13

insulators

Answer 13

material through which a charge will not move easily (i.e. glass, plastic, cloth, dry wood, rubber, etc)

Question 14

conductors

Answer 14

materials that allow charges to move about easily (i.e. metal, graphite, etc)

Question 15

Coulomb’s Law

Answer 15

F = kQq/d2

F = force of charge					        N
Q (q 1 )= charge of object 1				C
q (q2) = charge of object 2				C
d = distance between objects  		        m
k = 9.0 x 109 N m2/C2