Conductors and Insulators Quiz

What is the movement of electrons called in a circuit?

• Resistance

• Voltage

• Electricity

• Current

Which material provides the easiest path to the electric current?

• Glass

• Rubber

• Copper

• Insulator

Which metal is the most conductive but also very expensive?

• Silver

• Aluminum

• Gold

• Copper

What is the benefit of using a good conductor with very low resistance?

• It is expensive

• It blocks the current

• It saves electricity

• It heats up quickly

Which material is commonly used for home wiring due to its good amount of free electrons?

• Aluminum

• Copper

• Gold

• Silver

What is the property of materials like glass and rubber in terms of insulation?

• Expensive

• Conductive

• Poor insulation

• Good insulation

What is the main purpose of using insulators in an electric circuit?

• To increase electric current

• To heat up the wires

• To save electricity

• To prevent electrocution

Which material is used to insulate electric wires in a refrigerator?

• Wood

• Plastic

• Porcelain

• Rubber

What role does insulation play in a system?

• Increase compressor load

• Limit heat gains

• Reduce electricity consumption

• Increase heat gains

Which material is an example of a good insulator?

• Silver

• Glass

• Aluminum

• Copper