Thermal Transfer

As you touch a hot stove the heat transfers -

• from your hand to the stove

• from the stove to your hand

• It doesn't transfer

Tags

NGSS.MS-PS1-4

Hot objects begin to cool as-

• cooler air is transferred to the hot object.

• thermal energy in the object is transferred to the surrounding air.

• atoms in the object react with the oxygen in the air.

• thermal energy in the object cancels out energy in the air

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The baby chickens are kept warm from the heat lamps.  This demonstrates what kind of heat transfer? 

• conduction

• convection

• radiation

The transfer of thermal energy through a substance by direct contact is called___.

• conduction

• insulation

• convection

• radiation

The arrows inside the pot show ​ (a)  

• convection

• radiation

• conduction

The transfer of thermal energy from one place to another by the the movement of fluids is

• convection

• conduction 

• radiation

• thermal energy

On a cold rainy day a baby is touching a cold window.  It feels so cold. Which way is the heat moving moving? 

• Cold is moving from the window to the hand.

• Heat is moving from the hand to the window.

• Heat doesn't move.

• It moves in currents

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction

• convection

• radiation

• Insolation 

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

An iron bar is placed in a flame, as shown, and is heated until the end glows.The other end of the iron bar soon becomes hot, too.  Which of the following statements best describes why the iron bar becomes hot to the touch?

• a convective flow of energy is set up inside the iron bar.

• energy is conducted from atom to atom along the length of the iron bar.

Tags

NGSS.MS-PS1-4

Jenny poured some hot chocolate into a cup and stirred it with a metal spoon.  She noticed the spoon was really warm.  What is the best explanation for this?

• The spoon is a conductor.

• The spoon reflects heat.

• The spoon is an insulator.

• She touched the spoon first and waited to touch the cup.

Tags

NGSS.MS-PS1-4