Conduction
Conduction is the process of heat transfer through __________ contact between objects.
DIRECT
Convection is the transfer of heat through the movement of ___________________.
Fluids (like liquids or gasses)
Radiation is the transfer of heat energy through _________________ waves.
electromagnetic
What heat transfer process do the following examples belong to? Touching a hot pan, ironing clothes, cooking on a stove, holding an ice cube, heating a spoon in hot soup: __________________________
CONDUCTION
Energy flows from the warmer/colder object to the warmer/ cooler object.
Energy flows from the WARMER object to the COOLER object.
Warmer fluids _______ while cooler fluids _________, creating a continuous circulation of heat energy.
RISE, SINK
The transfer of heat from the sun to the earth is an example of _____________. (think heat transfer processes)
Radiation
Waves carry __________________, but not ___________________
energy, matter
When holding an ice cube, the heat starts in your ________ and conducts to the ______________.
HAND, ICE CUBE
When you heat water on a stove, the __________ water near the bottom rises to the top, while the ____________ water near the top sinks. This creates a ____________ current, which distributes heat throughout the pot, causing the water to boil.
hotter, cooler, CONVECTION
When the sun's electromagnetic waves come into contact with our skin, they transfer their energy as ________, which makes us feel warm.
heat
What type of wave doesn't need a medium to travel?
Electromagnetic
What material is a good conductor? __________
Metals
In the atmosphere, convection is responsible for?
wind
Unlike convection or conduction, radiation does not require a _________ medium to transfer energy.
medium
Why can't you hear sound in space?
Sound waves are carried through air (medium), in space there's no air. (vacuum)
Which metal is the best conductor of heat? Aluminum, Copper or Silver
What is Aluminum?
Why did the hot red water rise and the cold blue water sink?
Warm particles rise while cold particles move close together and sink.
List two sources of radiation: ____________________________________________
sun, fire, electric heaters, our bodies!
How does heat transfer in conduction, convection, and radiation: ____________________________________________________________________________________________________________________________________
Conduction= conTOUCHion (transfer through direct contact)
Convection= CONVECTION currents (transfer through movement of fluids)
Radiation= RaDiAtInG wAvEs (transfer through electromagnetic waves)