Electricity

Question 1

Live colour

Answer 1

brown

Question 2

neutral colour

Answer 2

blue

Question 3

Earth colour

Answer 3

green yellow

Question 4

UK mains voltage supply is

Answer 4

230V a.c at a frequency of 50Hz

Question 5

measured in

Answer 5

voltz

Question 6

How is the electricity around a home delivered?

loc

Answer 6

ring main

1

Question 7

ring main consists of

Answer 7

3 wires

Question 8

wire completes the circuit

Answer 8

Neutral

Return wire

Question 9

wire is a low resistance connection

Answer 9

Earth

Question 10

wire provides the path along which the electricity energy from the power station travels

Answer 10

Live

Question 11

Plastic in con

Answer 11

insulator

Question 12

metal in con

Answer 12

conductor

Question 13

Which path will current always take?

Answer 13

least resistance

Question 14

volts named after

Answer 14

Alessandro Volta

Question 15

Invented the electric battery

Answer 15

Volta

Question 16

Volta discovered which gas

Answer 16

Methane

Question 17

type of cables hazard

Answer 17

Frayed cables

Question 18

types of plugs a hazard

Answer 18

Damaged plugs

Question 19

Voltmeter measures

Answer 19

electrical potential

Question 20

Liquid hazard for electricity

Answer 20

Water around socket, as water is a good conductor

Question 21

What is a fuse

Answer 21

safety device that prevents electrical shock and fires.

Question 22

Symbol of fuse

Answer 22

fuse

Question 23

current is always travelling in the same direction

Answer 23

Direct current

Question 24

AC

Answer 24

flow of electricity is constantly changing direction

Question 25

How do you work our power?

Answer 25

power = voltage x current W = V x A P=IV energy /time

Question 26

Why are circuit breakers better than fuses?

Answer 26

Can easily be reset by flicking a switch so are more convenient

Question 27

Circuit breaker loc

Answer 27

5

Question 28

How do you wire a plug correctly?

Answer 28

a

Question 29

Plug picture

Answer 29

picture

Question 30

What do electrical appliances do

Answer 30

Transfer electricity

Question 31

What is voltage

Answer 31

The driving force that pushes the current around, like an electrical pressure

Question 32

What happens if you increase the voltage?

Answer 32

More current will flow

Question 33

Another name for voltage

Answer 33

potential difference

Question 34

wire connected to national grid

Answer 34

live

Question 35

how I think get electricity

Answer 35

atmospheric

Question 36

create heat

Answer 36

pot candle

Question 37

Light bulb inventor

Answer 37

Edison

Question 38

What is electricity

Answer 38

physical phenomena associated with the presence and motion of matter that has a property of electric charge

Question 39

Energy measured in

Answer 39

watt or joule

Question 40

Why need electricity

Answer 40

Heat, compliances

Question 41

why keep knowledge

Answer 41

PROFIT keep us poor