A matchstick can light a tiny splinter of wood but not a big log of wood give reasons
Answers
Matchstick produces enough heat to burn a piece of paper or a stick but a log is way to big for it. A paper have a ignition temperature of about 220 degree Celsius and it can be burnt by a match because it has higher calorific value than ignition temperature of paper...but it is opposite in the case of log.
Log is itself very huge in size as compared to the match and also has an ignition temperature more than what a match can produce..
This is the reason for your question
REQUIRED ANSWER ✍️:-
A splinter of wood has low ignition temperature. A burning matchstick could produce enough heat to reach the ignition temperature of the splinter of wood. Therefore, a matchstick could light it directly. But the log of wood is itself bigger than the matchstick in size. It also has a greater ignition temperature than the splinter of wood and the matchstick could not reach that ignition temperature. So, it is not capable of lighting a big log of wood.