Electricity and circuits

Question 1

Electricity

Answer 1

an energy caused by the movement of electrons between two points when there is a potential difference between them, causing electric current

Question 2

Electric charges

Answer 2

when two objects are rubbed together, the accumulation of charged particles on the surfaces creates a crackling effect=static energy
SI unit=Coloumb

Question 3

Net charge

Answer 3

Positive-Negative charges=Net charge
the transfer of electrons on an object creates this

Question 4

Formula for electric current

Answer 4

I= charge(Q)/time(t)

Question 4

Electric current

Answer 4

is the flow of electric charges through any material
SI unit=Ampere(A)

Question 5

Resistance

Answer 5

How easily electric current can flow, silver is less resistant than aluminum as aluminum has greater hindrance to the electric current

Question 6

adjectives wise resistance

Answer 6

Long wire= More
Short wire=Less
Think=Low
Thin=More

Question 7

Higher resistance of a wire

Answer 7

Higher heat produced

Question 8

In electric objects not requiring heat

Answer 8

The wires are usually made up of thin filament(ex.tungsten)

Question 9

Fuses

Answer 9

It heats up and breaks to protect an electric current from short circuits and stuff

Question 10

MCB

Answer 10

Miniature circuit breakers->
they are switches that turn off when the current exceeds limits