Convection, Conduction and Radiation

What kind of heat transfer happens when the sun is heating your body?

• Conduction

• Radiation

• Convection

• Density

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

• conduction

• convection

• radiation

• Insolation 

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction

• convection

• radiation

Johnny accidentally grabbed the handle of the hot pot.

• conduction

• convection

• radiation

A group of friends gather around a fire to stay warm.

• conduction

• convection

• radiation

Transfer of thermal energy through "space"

• conduction

• convection

• radiation

Transfer of thermal energy through "touch"

• conduction

• convection

• radiation

Which is an example of conduction?

• Steam is rising from a cup of hot coffee.

• A hot biscuit is warming the plate it is on.

• The sun is shining through a window and warming a table.

• Grilling a hot dog over a campfire.

Radiation is when energy is transferred...

• by contact

• by flow of fluid in liquid or gas

• by waves or rays

• this is not an energy-transfer process

Higher temperature means faster moving molecules

• True

• False