terms and definitions

Question 1

an electric charge (positive or negative) that can be collected and held in one place on an object that results from the transfer of electrons.

Answer 1

static charge

Question 2

the build up and release of a Static Charge (electrons) on an object.
Examples: lightning, scuffing feet and touching a doorknob

Answer 2

static electricity

Question 3

A particle with a positive charge

Answer 3

proton

Question 4

a particle with a negative charge

Answer 4

electrons

Question 5

particles with a neutral charge

Answer 5

neutrons

Question 6

One charge is equal to the gain or loss of 6.25x1018 electrons!

Answer 6

coulomb

Question 7

a list of materials in order of increasing tendency to gain electrons. As you move further down the list, the materials increase in their tendency to gain extra electrons.

Answer 7

electrostatic series

Question 8

when a static charge is generated or transferred through touch (without friction).

Answer 8

conduction

Question 9

when an object loses an electric charge by transferring electrons.

Answer 9

electric discharge

Question 10

the ability to do work. Measured in Joules (J)

Answer 10

energy

Question 11

stored energy

Answer 11

potential energy

Question 12

the potential of a charged particle to do work.

Answer 12

Electric potential energy

Question 13

the amount of potential energy stored per coulomb (C) of electric charge found at a specific location.

Answer 13

electric potential difference (voltage).

Question 14

pressure on electrons to change position

Answer 14

voltage

Question 15

used to measure electric potential difference in volts (V)

Answer 15

Voltmeter

Question 16

uses chemical reactions to force electric charges into a high energy position. In other words it creates electric potential difference (voltage).

Answer 16

Electrochemical cell

Question 17

a terminal made of a conducting material

Answer 17

Electrode

Question 18

a substance that conducts electricity. It allows charged particles to flow. It can be paste or fluid.

Answer 18

Electrolyte

Question 19

one or more electrochemical cells connected in a series.

Answer 19

battery

Question 20

Supplies the electric potential difference (voltage) to a circuit. It causes the electrons to move.

Answer 20

source

Question 21

Any component that changes electrical energy into a different form such as light or heat.

Answer 21

electric load

Question 22

Any material that allows electrons to move freely from one atom to another.

Answer 22

conductor (wire)

Question 23

Normally shortened to ‘amp’. The SI unit for current. It equals 1 coulomb of charge passing a point in a circuit each second.

Answer 23

ampere (A)

Question 24

A device used to measure electric current.

Answer 24

ammeter

Question 25

the amount of charge (electrons) passing a certain point in a circuit each second. It is measured in amperes (A) using an ammeter

Answer 25

electric current

Question 26

the flow of electrons through a conducting material. It is measured in amperes (A) and refers to the number of electrons that move through a wire per second.

Answer 26

current electricity

Question 27

A continuous (unbroken) loop of conducting material through which electrons can move.

Answer 27

electric circuit

Question 28

conductors that can open or close. They give control over the flow of electrons.

Answer 28

switch

Question 29

a layout of an electrical circuit

Answer 29

circuit diagram

Question 30

the property of any material that slows down the flow of electrons. It is measured in ohms (Ω)

Answer 30

resistance

Question 31

a circuit component that has a specific resistance. Normally used to regulate the electric current going to other parts of a circuit.

Answer 31

resistor

Question 32

a symbol to represent resistance

Answer 32

ohm

Question 33

V= I/R

Answer 33

Ohm’s Law

Question 34

Parallel Circuit

Answer 34

A circuit with more than one path through which the current can travel back to the source.

Question 35

A circuit with only one path through which the current (electrons) can travel back to the source.

Answer 35

series circuit

Question 36

a place or point where two or more things are joined, as a seam or joint

Answer 36

juction point

Question 37

An electrical switch is designed to protect an electrical circuit from damage caused by overcurrent/overload or short circuits.

Answer 37

circuit breaker

Question 38

an electrical safety device that protects an electric circuit from excessive electric current.

Answer 38

fuse

Question 39

The rate at which work is done by an electrical circuit. It is measured in watts.

Answer 39

electrical power

Question 40

the unit for electrical power.

1 ____ = 1 joule per second

Answer 40

watt

Question 41

The unit of measurement for energy consumption in a household.

It equals 1 kW of power being consumed for 1 hour. (3,600,000 joules!)

Answer 41

kilowatt hour

Question 42

The amount of energy (power) used over a period of time. It is typically measured in kilowatt-hours.

Answer 42

energy consumption

Question 43

Tells how much electricity it needs to work

Answer 43

power rating

Question 44

the energy generated by the movement of electrons from one point to another

Answer 44

electrical energy

Question 45

unit of work or energy

Answer 45

joule

Question 46

The percentage of electrical energy converted into a useful form as a portion of the total amount of electrical energy used.

Answer 46

efficiency