COREELEC

A plastic ruler can become charged if:

• it is left in the sun

• water is poured over it

• it is rubbed on a woollen jersey

• the moon and the sun line up

When a plastic ruler is charged it can be used to:

• make the hair on your head stand up

• bend a stream of water

• pick up small pieces of paper

• all of the options

Static electricity means that there is a build up of charge which is:

• always very dangerous

• not moving

• magnetised

• all of the options

Which of the following things are examples of static electricity?

An electrical insulator is:

• something that keeps the electricity warm

• used to make sure electricity isn’t wasted

• a substance that electricity cannot flow through

• a substance that electricity can flow through easily

A conductor of electricity is something that:

• finds electricity

• stops electricity from flowing through it

• makes electricity

• allows electricity to flow through it

An advantage of having lamps connected in parallel is that

• it looks nicer

• if one lamp goes out the others will keep going

• it uses less wire

• it is safer

Some people use light bulbs connected in series to decorate trees and houses. One disadvantage of connecting light bulbs in series is:

• When one light bulb stops working all the others keep working

• When one light bulb stops working all the lights go out

• It uses more electricity

• It uses more wire to connect the lights up

Complete the diagram below to show how you would connect wires to make the lamp glow:

Use clues to fill in the crossword: The liquid in a car battery is _ _ _ _

(a)