Static electricity

Question 1

Unit of electric charge

Answer 1

The coulomb (C)

Question 2

Insulator

Answer 2

Any substance through which electric charge cannot flow
E.g. glass,perspex

Question 3

Conductor

Answer 3

Any substance through which electric charge can flow
E.g. Metals

Question 4

Where does static charge on a conductor tend to accumulate

Answer 4

where the conductor is most pointed

Question 5

Where does static charge reside on a conductor?

Answer 5

the outside of it

Question 6

Coulombs law

Answer 6

Coulomb’s law states that the electrical force between two charged objects is directly proportional to the product of the quantity of charge on the objects.

Question 7

Electric field

Answer 7

Any region of space where a static electric charge experiences a force other than the force of gravity

It is always caused by other static charges in the vicinity

Question 8

Line of force (Electric field line)

Answer 8

A line drawn in an electric field showing the direction of the force on a positive charge placed in the field

Question 9

Electric field strength (E)

Answer 9

The force per coulomb

Question 10

Uses of a gold leaf electroscope

Answer 10

detect charge
Indicate the approximate size of a charge
Test wether a charge is + or -