Multiple choice

An object is hotter for the same distance over the top of the fire than it is in the side of it mainly because

  1. air conducts heat upwards

  2. heat is radiated upwards

  3. convection takes more heat upwards

  4. convection, conduction & radiation all contribute significantly transferring heat upwards

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Convection involves the upward movement of heated air, which carries thermal energy directly to objects above the fire. While radiation travels in all directions, the rising hot air makes the top significantly hotter than the sides.