Electricity - Electric charge

Question 1

What are common materials that conduct electricity

Answer 1

copper, iron, gold, aluminum, and silver

Question 2

What are common materials that are insulators

Answer 2

Plastic, wood, rubber and glass

Question 3

practical: investigate how insulating materials can be charged by friction

Answer 3

https://www.tutormyself.com/2-23-practical-investigate-how-insulating-materials-can-be-charged-by-friction/

Question 4

How are positive and negative electrostatic charges produced on materials by the gai and loss of electrons

Answer 4

The material that gains electrons becomes negatively charged. The material that loses electrons is left with a positive charge when the objects rub against each other

Question 5

explain electrostatic phenomena in terms of the movement of electrons

Answer 5

result from the ability of electrons to move relatively easily in many materials

Question 6

What are the potential dangers of electrostatic charges, e.g. when fuelling aircraft an

Answer 6

If the charge is very large, a spark to the earth may happen unexpectedly. Sparks like this can be dangerous, potentially igniting a fire. A build-up of static charge is a potential danger when refuelling aircraft or vehicles. Fuel running through the pipes can provide the friction needed to create a static charge

Question 7

What are some uses of electrostatic charges

Answer 7

Photocopiers also use static electricity to attract the small particles of ink onto the paper in the right places.

Question 8

Are paint particles positively or negatively charged

Answer 8

They are positively charged