SCIENCE V Q3W2

What do we call a material that allows electricity to pass through it?

• conduction

• conductor

• insulator

• metal

Which is an example of conductor?

• book

• cloth

• copper wire

• paper plate

What do we call a material that does not allow the electricity and heat to pass through it?

• conductor

• insulator

• iron

• wire

Which is an example of insulator?

• book

• copper

• metal fork

• silver

What do we call the transfer of heat in solid?

• conduction

• conductor

• insulator

• radiation

Why are cooking utensils made up of metal but the handles are made of plastic?

• Metal is hard while plastic is soft.

• Metal is expensive but plastic is cheaper.

• Metal is not brittle while plastic is brittle.

• Metal is a good conductor of heat while plastic is a poor conductor of heat.

Which of the following consists of objects that are good conductors of heat?

• steel, paper towel, paper

• gold, pencil, tape

• iron wire, thumb tacks, steel ruler

• aluminum cup, wood, cloth

What is the difference between a conductor and an insulator?

• An insulator is durable, while a conductor is not.

• A conductor is durable, while an insulator is not.

• An insulator allows heat to flow through it easily while a conductor does not.

• A conductor allows heat to flow through it easily while an insulator does not.

Which of the following is a good conductor?

• cloth

• metal

• plastic

• wood

Which is not true on the following statements?

• Metals are non-ductile while non-metals are ductile.

• Metals are opaque while non-metals are transparent.

• Metals are lustrous while non-metals are not lustrous.

• Metals are good conductors of heat and electricity while non-metals are  poor conductors of heat and electricity