GL Practice - Electricity

Look at the diagram, which letter shows the switch?

• a

• b

• c

• d

The bulb is not lit in the electrical circuit because...

• The circuit is not complete

• electricity cannot flow through the ruler

• The bulb is not made of metal

• The ruler is the wrong way around

The pins on the plug are made of metal because...

• metal conducts electricity

• metal is strong

• metal is a good insulator

• metal is magnetic

Which part of the circuit can start or stop the flow of electricity?

• The battery

• The bulb

• The switch

• The buzzer

Why does opening a switch in an electrical circuit turn off a light?

• it breaks the light

• it breaks the electrical circuit

• it makes a spark

• it completes the electrical circuit

James makes a circuit using a light bulb and wire. The light bulb will not shine because..

• The wire is not long enough

• The circuit does not have a battery

• The circuit does not have a switch

• There is a gap in the circuit

Electrical wires are made of metal covered in plastic. The metal...

• keeps the plastic cool

• is a good electrical insulator

• is a good electrical conductor

• stops the plastic from vibrating