The Principles
of Heat, Light,
& Sound
Heat
Heat is transferred three ways…
Conduction
Convection
Radiation
Conduction
Conduction is heat transferred by contact.
Examples…
Eggs and bacon
Running
cooking in frying barefoot on
pan.
hot asphalt.
Conduction
Conduction is heat transferred by contact.
Examples…
Metal spoon
in hot soup.
Ice melting in
your hand.
Eureka! – Conduction
Heat Conduction
Heat Transfer Song
Heat moves easily through conductors.
Examples…
Gold
Aluminum
Bronze
Brass
Copper
Iron
What stops heat transfer?
Insulators
Examples…
Air
Rubber
Styrofoam™
The second form of heat transfer is…
Convection
Hot rises, cold falls creating currents.
Examples of convection…
Hot Air Balloon
Home Heating
Wind
Eureka! – Convection
Heat Transfer – Convection
Heat Transfer Convection II
The third form of heat transfer is…
Radiation
Radiation is heat as an electromagnetic
wave.
Radiation can travel thru space
and our atmosphere.
The wave becomes heat when it hits an
object.
Examples of radiation…
Sun
Light
Bulb
Fire
Eureka! – Radiation
Heat Transfer – Radiation