Static Electricity

Question 1

Conductor

Answer 1

Substance that allows electricity to flow through it easily, and cannot be charged with static electricity

Question 2

Insulator

Answer 2

Can be charged with static electricity

As electrons cannot flow through the insulator to replace those that have been lost

Question 3

Structure of an atom

Answer 3

-outside of atom are electrons which have a NEGATIVE charge
-protons and neutrons inside
- protons are POSITIVELY
Atom has equal amounts of positive and negative charges I.e electrically neutral. All atoms want to be neutral
ELECTRONS don’t always stay attached to their atoms
Removed via friction via rubbing

Question 4

Effect that charged objects have on each other

Answer 4

Positively charged + positively charged= repel
Negative and positive= attract
Negative and negative= repel

Question 5

How to charge an insulator by friction/contact

Answer 5

Insulator rubbed with cloth:

1. Losing electrons
Positive charge
Electrons move from insulator to the cloth
2. Gaining electrons 
Electrons move from cloth to insulator 
Negative charge

Question 6

Static electricity

Answer 6

Build up of electric charge, static because charge unable to flow

Question 7

Why is a build up of charge dangerous

Answer 7

Can cause dangerous sparks

Which could lead to explosions

Question 8

Spray painting cars

Answer 8

Negative paint- droplets repel each other- even coverage + spread out
Positive car- paint attracted
Less wasted
Covered well

Question 9

Earthing lines in refuelling aircraft

Answer 9

Charge safely conducted away via earthing

Wire provides path for electricity to flow through + prevents build up of dangerous static charge