Question

An unlit match is held near ( not touching) to an extremely hot bunsen flame. The match does NOT get hot enough to light because a. the flame is not hot enough b. air is a bad conductor of heat c. the match head reflects radiation d. the flame does not radiate any heat

Answer 1

if you think about the three methods of heat transfer, you have conduction, convection, and radiation.

Answer 2

from the relative positions, we can see that convection will not heat the match. Bunsen burners do not radiate very much heat.

Answer 3

the actual answer here is B. The flame is certainly hot enough to ignite the match, the match head reflects some radiation, but not all of it, and the bunsen flame does radiate, just not enough to make the match head catch fire. By process of elimination, we have B.

Answer 4

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