ALL

Question 1

example of history of electricity

Answer 1

ben franklin shows lightning is electricity

Question 2

Force created by a difference in charges due to gained or lost electrons

Answer 2

electricity

Question 3

what can move from one Atom to another; what cannot

Answer 3

electrons; protons

Question 4

what charge are electrons

Answer 4

negative

Question 5

what must you have for electricity to flow

Answer 5

Circuit, current, voltage

Question 6

electrons moving from point a to point B

Answer 6

current

Question 7

what is current measured in

Answer 7

amperes (amps)

Question 8

A closed continuous path

Answer 8

A circuit

Question 9

where does electricity always flow

Answer 9

A location with a positive charge

Question 10

difference in charge from one end of the wires to the other that pushes the electrons

Answer 10

voltage

Question 11

electrons can be rubbed off of one object on to another

Answer 11

static charge

Question 12

what happens when a neutral objects are rub together and charges are rearranged

Answer 12

they stick together

Question 13

A temporary one time charge produced by an excess of electrons

Answer 13

static electricity

Question 14

can be used to tell detect a static charge

Answer 14

electroscope

Question 15

what three ways is a static electricity caused

Answer 15

friction, conduction, induction

Question 16

when objects rub together and electrons are transferred

Answer 16

friction

Question 17

charged objects touch another object in electrons are transferred

Answer 17

conduction

Question 18

A charged object is held close to another object and that causes charges to be rearranged

Answer 18

induction

Question 19

example of friction

Answer 19

during a storm, water and dust particles are rub together by winds

Question 20

example of conduction

Answer 20

during a storm charged areas touch other areas of the clouds and some charges are transferred

Question 21

example of induction

Answer 21

during a storm when a highly charged cloud is overland, a charged area on the ground is produced

Question 22

how is lightning created

Answer 22

friction, and conduction, induction

Question 23

uses of static electricity

Answer 23

Air pollution control, air fresheners,xelography, painting cars

Question 24

provide a conducting path to the earth which is independent of the normal current carrying path in an electrical appliance

Answer 24

ground

Question 25

Materials through which electrons can easily move

Answer 25

conductors

Question 26

what are examples of good conductors of electricity

Answer 26

Metal, acids, sea water, tapwater

Question 27

Materials through which electrons cannot move easily

Answer 27

insulator

Question 28

examples of good insulators

Answer 28

Wood, ceramic, Rubber, glass, plastic

Question 29

Materials that can slow the flow of electricity without stopping it off together

Answer 29

resistors

Question 30

what is resistance measured in

Answer 30

Ohms

Question 31

The push behind electric current to the number of electrons flowing and to the resistance to the flow

Answer 31

ohm's law

Question 32

equation of ohms law

Answer 32

I = V/R

Question 33

what is voltage measured in

Answer 33

volts

Question 34

turns chemical energy into electrical energy and cause the voltage that makes electrons flow

Answer 34

electrochemical cells

Question 35

three main parts of electrochemical cells

Answer 35

Anode Cathode Electrolvte

Question 36

two kinds of electrochemical cells

Answer 36

wet cells and dry cells

Question 37

what is a wet cell and what is an example

Answer 37

liquid electrolyte; Car battery

Question 38

what is a dry cell; what is an example

Answer 38

A gel electrolyte; flashlight battery

Question 39

when electrons flow in only One Direction

Answer 39

Direct current

Question 40

electrons first go in One Direction, then reverse, then back again

Answer 40

alternating current

Question 41

A circuit in which the current must pass through all of the resistors on only one path

Answer 41

Series circuit

Question 42

A circuit in which the current can travel through more than one path

Answer 42

parallel circuit

Question 43

formula for electric power

Answer 43

P = V • I

Question 44

what is the formula for energy

Answer 44

E= P•T

Question 45

Device that moves a magnet near a wire to create a steady flow of electrons

Answer 45

generator

Question 46

regions of the magnet that produce magnetic force

Answer 46

magnetic poles

Question 47

how can space around a magnet through which magnetic force is exerted can be seen

Answer 47

with iron filings

Question 48

where are the magnetic field the strongest

Answer 48

at the poles

Question 49

why are most materials not magnetic

Answer 49

electron pairs cancel out Their magnetic field

Question 50

what elements have magnetic properties

Answer 50

Iron, nickel, cobalt

Question 51

when iron is placed in a strong magnetic field and when the magnetic field leaves The iron is still magnetic

Answer 51

permanent Iron magnet

Question 52

when placing materials with iron in them near a strong magnetic field, once fields are gone domains will revert to original state

Answer 52

temporary magnets

Question 53

how can you destroy a permanent magnet

Answer 53

by heating them up or dropping them

Question 54

what does reversing current flow of the magnetic field do

Answer 54

it reverses the direction

Question 55

current carrying coil of wire with many loops

Answer 55

electromagnets

Question 56

what three factors are electromagnets strength affected by

Answer 56

of loops in the coil amount of current presence of iron core

Question 57

what happens to charge particles when they are moving

Answer 57

they are deflected by magnetic fields

Question 58

is earth a magnet

Answer 58

yes

Question 59

is earths magnet stable

Answer 59

no

Question 60

what is the most used appliance at home

Answer 60

Air conditioners/heaters

Question 61

four major sectors that consume energy

Answer 61

industrial sector, transportation sector, residential sector, commercial sector

Question 62

what is an industrial sector

Answer 62

includes faculties and equipment used for manufacturing, agriculture, mining, and construction

Question 63

what is a transportation sector

Answer 63

includes vehicles that transport people or goods

Question 64

what is a residential sector

Answer 64

consists of homes and apartments

Question 65

what is a commercial sector

Answer 65

includes offices, malls, stores, hospitals, hotels, where houses, restaurants,other places