electrostatics and circuits

Question 1

friction

Answer 1

method of charging - rubbing two things together, one thing sheds electrons

Question 2

contact/conduction

Answer 2

a charged obj touches another ad charges are conducted/transferred

Question 3

induction

Answer 3

object is polarized and then grounded or separated into parts

Question 4

electric field

Answer 4

alteration of space around an electric charge

Question 5

electric field lines

Answer 5

imaginary lines drawn to visualize the electric field

point away from positive charge and toward negative charge

Question 6

electric field vectors

Answer 6

if you place another charge in an electric field created by a source charge, it will experience a force

Question 7

opposite charges in electric field

Answer 7

force and field will be opposite ways

Question 8

conventional current

Answer 8

positive charge moves toward negative charge

Question 9

electron current

Answer 9

nonequilibrium motion of charged sustained by an internal electric field - or the rate at which electric charges pass through a cross sectional wire

Question 10

actual current

Answer 10

negative to positive

Question 11

direct current

Answer 11

same current direction at all times

Question 12

alternating current

Answer 12

2 wires - switches which wire is pushing in

Question 13

factors affecting resistance of a wire

Answer 13

length (long=more), area (larger=less), material, temperature (high=more)

Question 14

electric power

Answer 14

the rate at which charge carriers do work

Question 15

short circuit

Answer 15

when a wire is connected from 1 terminal of a battery to another by a wire with little resistance (results in insulation merits or fire)

Question 16

electromagnetic force

Answer 16

energy per units charge supplied by source of electric current