I don't think so - I don't think any convection is involved. I think boiling uses all three though - heat is conducted, this radiates out and heats the water which when heated starts a convection current.
conduction and convection..
conduction by itself is slower to heat but conduction and convection is faster to heat
Convection has a cycle of what happens. Conduction dosent have a cycle
Lack of a flow medium will inhibit conduction and convection.
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The three forms of heat transfer are conduction, convection, and radiation. Conduction is the transfer of heat through direct contact of particles, convection is the transfer of heat through the movement of fluids or gases, and radiation is the transfer of heat through electromagnetic waves.
Convection is generally faster than conduction when transferring heat.
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.
No. The speeds of convection and conduction vary, but they are nowhere near the speed of light.