Heat Transfer

As you hold pieces of ice, they begin to melt from the warmth of you hand on them. This is because of

• conduction

• convection

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• hotter to hotter

• colder to colder

• hotter to colder

Tags

NGSS.MS-PS1-4

The type of heat transfer that happens through direct contact of molecules or particles with each other is

• convection

• conduction

___________________ is the type of heat transfer that occurs in fluids, such as warm air rising and cold air sinking;

• convection

• conduction

A fireman feels a door and it is hot. Why does his hand feel hot?

• conduction

• convection

You are in the top bunk of a bunk bed and you want to turn the air conditioner on while your friend on the bottom bunk is fine is caused by

• conduction

• convection

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Heat transfer in boiling water.

• conduction

• convection

Which ice cube will melt first?

• The large cube

• The small cube

• They will melt at the same time.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Heat transfer occurs

• in many directions

• only from warm objects to colder objects

• both from warm objects to colder ones and from cold objects to warmer ones.

• only from cold objects to warmer ones.

Tags

NGSS.MS-PS1-4

What does friction produce?

• heat

• light

• sound