Vocabulary Chapter 20-Langer

Front 1

electric force

Back 1

is the attraction or repulsion between electric charges

Front 2

static electricity

Back 2

not moving or charging build up of changes on an object

Front 3

friction

Back 3

is the transfer of electrons from one unchanged object

Front 4

imduction

Back 4

is the movement of electrons to one part of an object that is caused by electric field of second object

Front 5

electric field

Back 5

extends around charged abject

Front 6

conduction

Back 6

is the transfer of electrons from charged object to another object by direct contact

Front 7

static discahrge

Back 7

the loss of static electricity as electric charged transfer from one object to another

Front 8

electric current

Back 8

is the continuous flow of lettuce charged through a material

Front 9

electric circuit

Back 9

is s complete unbroken path through which electric charged can flow

Front 10

insulator

Back 10

a material through which it charged cannot flow easily

Front 11

voltage source

Back 11

is a device that creates a potential difference in a electric circuit

Front 12

conductor

Back 12

a material through which it can flow easily

Front 13

voltage

Back 13

difference in electrical potential energy between two places and in circuit

Front 14

resistance

Back 14

The measure of how difficult it is for charge to flow through material

Front 15

electrochemical cell

Back 15

is a device that conveys chemical into electrical energy

Front 16

electrode

Back 16

Metal immersed in substance

Front 17

terminal

Back 17

part of an electrode one above the surface of the electrolyte

Front 18

wet cell

Back 18

an electrochemical in which conducts electric current

Front 19

electrolyte

Back 19

A substance that conduct electric current

Front 20

battery

Back 20

is a combination of two or more electrochemical cells in a series

Front 21

dry cell

Back 21

is an electrochemical cell in which the electrolyte is a paste

Front 22

ohms law

Back 22

relationship between resistance voltage current summed up

Front 23

series circuit

Back 23

all the parts of an electric circuit are connected one after another along one path

Front 24

ammeter

Back 24

a device used to measure current

Front 25

parallel circuit

Back 25

The different parts of a circuit are on separate branches

Front 26

voltmeter

Back 26

A device to measure voltage

Front 27

Power

Back 27

The rate in which energy is transformed from one form to another