Infared radiation Flashcards
What is radiation?
Radiation is an electromagnetic wave which transfers thermal energy.
What does conduction and convection need to work but radiation doesn’t?
Particles
No particles
What can radiation travel through that conduction and convection can’t?
A vaccum
What type of wave is radiation?
An electromagnetic wave.
Why can it travel through space?
It doesn’t need particles.
The __________ an object the ___________ radiation it emits.
The HOTTER an object the MORE radiation it emits.
OR
The COLDER an object the LESS radiation it emits.
What type of surface reflects radiation?
A light coloured, shiny surface
What type of surface absorbs radiation?
A dark coloured, matte surface
Radiation can be __________ and ____________ by surfaces
Radiation can be reflected and absorbed by surfaces
