Conductors and Insulators - Multiple Choice Questions

What is a conductor?

• A material that blocks the flow of electricity

• A material that allows electricity to flow easily

• A material that absorbs electricity

• A material that reflects electricity

What is an insulator?

• A material that allows electricity to pass through easily

• A material that absorbs electricity

• A material that does not allow electricity to flow easily

• A material that produces electricity

Which of the following is a good conductor of electricity?

• Plastic

• Rubber

• Copper

• Glass

Which of these materials is an insulator?

• Aluminum

• Wood

• Steel

• Copper

Why are electrical wires often covered with rubber or plastic?

• To make them look nice

• To prevent electrical shocks

• To help electricity flow faster

• To make them stronger

What do conductors do in an electrical circuit?

• Prevent the circuit from working

• Allow electricity to flow

• Stop electricity from flowing

Which of the following would be the best insulator for a pot handle?

• Metal

• Wood

• Aluminum

• Copper

Which of these objects is a good conductor of electricity?

• A rubber eraser

• A glass bottle

• A silver spoon

• A wooden ruler

If a circuit does not work because electricity cannot flow, which material is most likely causing the problem?

• A copper wire

• A plastic coating

• An aluminum strip

• A metal screw

A student is testing materials to see if they conduct electricity. Which material is most likely to conduct electricity?

• A wooden pencil

• A plastic straw

• A metal paperclip

• A rubber band