Heating and Cooling

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

What heat transfer happens when you burn your hand by touching a fire?

• Radiation
• Conduction
• Convectio
• I don't know!!!!!!!!!!!

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

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Johnny accidentally grabbed the handle of the hot pot.

• conduction
• convection
• radiation

The way the heat is moving from the hot coffee is called...

• convection
• radiation
• insulation
• conduction

Conduction occurs in...

• solids
• liquids
• gases

Heat would best be transferred by conduction between

• a candle and the air.
• an oven and a glass dish.
• a stove and a copper pot.
• water and a wooden spoon

Carole owns a two story house with a heating and cooling unit on each floor. In the winter she mostly uses the downstairs unit because the volume of warm air __________ and __________ warming the whole house through __________.

• expands, rises, convection
• expands, sinks, conduction
• contracts, rises, conversion
• contracts, sinks, contraption

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The man goes to take the hot pot off the stove with his bare hands.

• conduction
• convection
• radiation

Tags

NGSS.MS-PS1-4