Electricity

Question 1

A conductor is

Answer 1

a material through which electricity, heat or sound can flow through easily

Question 2

an ELECTRICAL conductor can conduct

Answer 2

(your mom) electricity duh i.e. easily allows electricity to flow through it

Question 3

which electrons are loosely bound and free to move through the material

Answer 3

outer (valence) electrons, hence the presence of ‘free electrons’

Question 4

eg of metals

Answer 4

iron, silver, gold and copper

Question 5

metals are said to be

Answer 5

good conductors

Question 6

materials that are poor electrical conductors are said to be

Answer 6

good insulators bruh

Question 7

what is a current

Answer 7

any electrical movement through a material

Question 8

hello

Answer 8

take a break if you havent. eat and drink water

Question 9

an insulator is a

Answer 9

material that does not easily allow the passage of electricity, heat or sound

Question 10

can an electrical insulator conduct electricity?

Answer 10

NO it cannot

Question 11

why are there little to no free electrons present

Answer 11

the orbiting (valence) electrons are bound firmly to their atoms

Question 12

common insulators

Answer 12

glass, paper, air, plastic, rubber and wood

Question 13

materials that are poor electrical insulators are said to be

Answer 13

good conductors

Question 14

an electrical current (state unit) consists of

Answer 14

unit- I (capital i), consists of moving electric charges

Question 15

what are positive charges

Answer 15

protons

Question 16

negative charges

Answer 16

electrons

Question 17

since protons are bound in the nucleus of the atom…

Answer 17

they cannot move, hence current is due to the movement of electrons

Question 18

current refers to

Answer 18

THE RATE AT WHICH ELECTRIC CHARGES FLOWS THROUGH A CONDUCTOR (this is important)

Question 19

unit and measurement of electric charge

Answer 19

Q, measured in Coulombs, C

Question 20

1C=

Answer 20

charge of approximately 6.28x10^18 electrons (Lord help us)

Question 21

I (capital i) is the number of

Answer 21

Coulombs of charge, Q passing a given point in one second

Question 22

formula

Answer 22

I=Q/t therefore this means Q=I x t

Question 23

t=

Answer 23

time (in seconds)

Question 24

question 1 part vi (look at others and always ask if you need help)

Answer 24

R.T.F Charge, Q
I=10A
Using Q=I x t
Q= 10 x 300 (5x60)
therefore Q=10C