IGCSE Year 4 Science Electricity and Circuits Quiz

Which material is a good conductor of electricity?

• Wood

• Glass

• Copper

• Rubber

What is the purpose of plastic covering around wires?

• It looks nice

• It prevents rust

• It insulates electricity

• It increases current flow

Which of the following is an insulator?

• Copper

• Iron

• Water

• Rubber

Which of these components stores chemical energy?

• Lamp

• Cell

• Switch

• Wire

Why must the wires in an electric circuit be connected properly?

• To reduce noise

• To complete the circuit

• To produce light faster

• To use fewer cells

What is meant by a 'closed circuit'?

• Wires are missing

• The switch is off

• Electricity flows in a complete loop

• Electricity is blocked

What does the symbol ‘V’ in science stand for?

• Vacuum

• Volume

• Voltage

• Viscosity

Why is it dangerous to touch a live wire with wet hands?

• It increases friction

• Water is a good conductor

• Hands become slippery

• It reduces resistance

In which situation is electricity used safely?

• Plugging in with wet hands

• Pulling wires from sockets

• Holding plug by plastic casing

• Placing wires under carpet

What happens if a circuit is broken?

• More electricity flows

• The lamp glows brighter

• Electricity cannot flow

• Wires melt