Conduction v.s Convection v.s Radiation

Types	Conduction	Convection	Radiation
Medium?	Yes	Yes	No
State of object?	Solid, liquid, gas	Liquid and gas only	Solid, liquid, gas
Terms used	Conductor of heat, Insulator of heat	Convection current, Density	Emitter of IR radiation, Absorber of IR radiation, Reflector of IR radiation
	Note that don’t mix up with the terms used for each process.