2006-12-02 18:56:44 · 7 answers · asked by chinky 1 in Science & Mathematics ➔ Physics
He would be receiving heat by:
Radiation: the fire is bathing him with infra-red light
Convection: the fire heats air which, in turn, heats him
2006-12-02 19:03:02 · answer #1 · answered by RichardPaulHall 4 · 0⤊ 0⤋
A person standing next to a fire will only receive heat via radiation, not convection. Because heat rises, it would require a strong lateral air movement to heat the person via convection, otherwise the convective airflow carrying the heat is generally straight up, not sideways toward the person's position next to the fire.
2006-12-03 04:28:14 · answer #2 · answered by indiana_jones_andthelastcrusade 3 · 0⤊ 0⤋
Mostly by radiation - but if the person is really close the air will be heated up a bit by convection. I'd say it's more than 99% by radiation though.
2006-12-03 04:28:41 · answer #3 · answered by brooks b 4 · 0⤊ 0⤋
Both ways r possible
2006-12-03 05:49:06 · answer #4 · answered by mad_integer 3 · 0⤊ 0⤋
Both.
2006-12-03 03:02:30 · answer #5 · answered by Pearlsawme 7 · 0⤊ 0⤋
yeah! i agree its both ways that is heating him. but it is infra red rays and not light. these rays are heat giving.
2006-12-03 03:04:40 · answer #6 · answered by Mysterious 3 · 0⤊ 0⤋
both
2006-12-03 05:27:22 · answer #7 · answered by balstoall 2 · 0⤊ 0⤋