Post Test - Conductors and Insulators

Front

Characteristics of materials that make them good conductors of heat and electricity: thermal conductivity, ductility, malleability, porosity. Which one is NOT?

Back

porosity

Front

Which of the following materials are good conductors of heat? Options: ceramic cups, disposable glass, silver; iron nail, silver, copper; glass, cloth, paper; aluminum, plastic, rubber.

Back

iron nail, silver, copper

Front

Good electrical conductors are generally good conductors of ___?

Back

heat

Front

Why are rubber and plastic insulators?

Back

They do not allow electrical charge to flow.

Front

Why are some handles of cooking pans made of wood?

Back

Wood does not allow heat to pass or flow through it.

Front

How do conductors differ from insulators?

Back

Conductors make electricity and heat pass through while insulators don’t.

Front

What did the students learn about the coin when both wires touched it and the light bulb lit up?

Back

It is a good conductor.

Front

Why is the black handle of a pot made of rubber and the pot made of copper?

Back

Rubber is a good insulator, and copper is a good conductor.

Front

Our body is also a good conductor of electricity because of the presence of: A. blood, B. hair, C. water, D. skin

Back

water

Front

Which of these materials DO NOT allow electricity to pass through? Options: gold, rubber, bronze, copper wire

Back

rubber