C - Heat Radiation Flashcards
Heat is transferred in __ different ways
3
What are the 3 ways the heat energy can be transferred?
- Radiation
- Conduction
- Convection
Conduction and convection involve the transfer of energy by …
Particles
Heat radiation is the transfer of heat energy by ….
Infrared radiation
Conduction is the main form of heat transfer is liquids, solids or gases?
Solids
Convection is the main form of heat transfer is liquids, solids or gases?
Liquids and gases
Infrared radiation can be emitted by …
Solids, liquids and gases
Any object can both _____ and _____ infrared radiation, whether or not conduction or convection are also taking place
Absorb and emit
The bigger the temperature difference between a body and its surroundings, the faster …
The energy is transferred by heating
What is infrared radiation?
The emission of electromagnetic waves
Infrared radiation is emitted from the ________ of an object
Surface
An object that’s hotter than its surroundings emits/absorbs more radiation?
Emits
An object that’s cooler than its surroundings emits/absorbs more radiation?
Absorbs
Name the two things that radiation depends an awful lot on…
Surface colour and texture
What’s the benefits of a dark, Matt surface?
They absorb and emit a lot of infrared radiation
