Radiation
What are examples of radiation?
Laser point, microwave, sun/fire.
What is conduction?
Conduction is the heat transfer through a substance.
Examples of convection
What is an insulator?
An item that creates a barrier keeping heat out.
What is convection current?
heat cycles that occur in the air or ocean
What is radiation?
Radiation is the heat transfer using a source that travels at the speed of light.
Diffference between conduction and convection
Conduction is the heat transfer through a substance and convection is the motion of heat rising or falling. (cold falls, hot rises)
What is the difference between convection and radiation?
Something that allows heat to transfer through easily.
Why do some items insulate and other conduct heat?
The denser the material is, the closer its atoms are.
Radiation fact
You use it almost everyday!
Conduction facts
Occurs more in solids or liquids.
Convection fact
Convection occurs due to differences in tempurature.
Difference between the two
Conductors allow heat to travel through easily while insulators do the complete opposite.
What are infrared waves?
parts of the electromagnetic spectrum.
Difference between radiation and conduction.
Conduction is the heat transfer through a substance, radiation is the heat transfer through a source that moves at the speed of light.
Examples of conduction are:
Ironing something, hot seatbelt, holding metal spoon.
More examples can be
Ice melting, hot air rising above fire.
Examples of conductors
Silver, gold, copper, steel.
What is the difference between convection, conduction and radiation?
-Convection = motion in which a gas or liquid rises or falls
-Conduction = transfer of heat using a substance
-Radiation = heat transfer coming from a source, moving at the speed of light.
Examples of radiation
heat from the sun, Heat lamps.
More examples of conduction are
burning feet on sand, standing on hot concrete barefoot (ouch).
What is convection
Examples of insulators
what type of thermal energy transfer would WiFi be?
radiation