Is barbecuing radiation convection or conduction?

Answer 1

Barbecuing, depending on what specific process it is referring to, could be either radiation, convection, or conduction. Radiation is when energy is released in the form of a photon, so the flames of the barbecue (light energy) are a form of radiation. Conduction is when energy is transferred through contact, or collision, therefore, the things you are cooking on the barbecue, are being heated through conduction with the metal. Convection is when energy travels through energy-containing particles (other than photons), so the steam rising from the coals is convection currents.

Answer 2

"Conduction heat" is never 'given off'. Conducted heat goes only where there's

something to conduct it there. If there's no material between you and the heat

but you feel it anyway, then the heat is being 'given off', and the process is

called "radiation". (That's how heat gets here from the sun.)

Answer 3

All of these.

There are convection currents inside the cup. Heat is conducted through the cup, and heat is radiated from the surface of the cup.

Answer 4

convection

Answer 5

Conduction

Answer 6

Radiation