CI6: Conductors and Insulators

What is a conductor?

• An object that transfers heat poorly.

• An object that does not have the ability to transfer heat.

• An object that transfers heat well.

• An object that eliminates all types of energy transfer.

Tags

NGSS.MS-PS3-3

What is an insulator?

• An object that transfers heat poorly.

• An object that does not have the ability to transfer heat.

• An object that transfers heat well.

• An object that eliminates all types of energy transfer.

Tags

NGSS.MS-PS3-3

Stainless steel pots generally have wood or rubber covered handles. Which answer choice explains why the cover is important?

• Steel is a conductor, and the cover is an insulator. The cover prevents you from burning your hand.

• The steel is too thin, so you need a wider handle to hold the pot comfortably.

• Steel is an insulator, so the cover prevents the heat from escaping.

• Since the steel is stainless, the cover offers additional protection to the metal as well as insulating it.

Tags

NGSS.MS-PS3-3

Which material would make the best thermal conductor?

• Brick

• Wood

• Paper

• Aluminum

Tags

NGSS.MS-PS3-3

Which material would make the best thermal insulator?

• Gold

• Steel

• Copper

• Wool

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What would be a disadvantage of stirring a boiling pot with a metal spoon?

• Cold would travel from your hand to the boiling pot

• Heat would travel from the boiling pot to your hand

• Metal spoons don't make enough noise while you're stirring

• Metal spoons don't stir very well

Which of the following would best protect ice cream from melting?

• A metal bowl with a lid

• A plastic cup

• An ice cream cone

• A thermos bottle

Tags

NGSS.MS-PS3-3

Which property of a thermos explains why they reduce energy transfer?

• There is a vacuum between the double walls of the container.

• There are additional particles added between the double walls of the container.

• They have lids that can open and close.

• They are only made of metal.

Tags

NGSS.MS-PS3-3

Why should oven mitts be made from materials which are good thermal insulators?

• Oven mitts made from good thermal insulators will be more comfortable

• Oven mitts made from good thermal insulators will keep the food hot

• Oven mitts made from good thermal insulators will protect hands from being burned

• Good thermal insulators will keep the oven hot

Tags

NGSS.MS-PS3-3

If you put frozen ice cream into a metal bowl, what would happen?

• Warmth would travel from the bowl to the ice cream

• Warmth would travel from the ice cream to the bowl

• Cold would travel from the bowl to the ice cream

• Cold would travel from the ice cream to the bowl

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4