Question

question 2 of 25
you burn a log on a fire. you use the fire to warm yourself and to help you see
to read a book. what energy transformation is taking place?
a. chemical energy is transformed to light energy and heat energy.
b. nuclear energy is transformed to light energy and heat energy.
c. chemical energy is transformed to nuclear energy and heat
energy.
d. nuclear energy is transformed to light energy and chemical
energy.

Explanation:

When you burn a log, a chemical reaction (combustion) occurs. In a chemical reaction like this, the stored chemical energy in the log is released. The log burns to produce heat (thermal energy) which warms you and light energy which helps you see (to read a book). Nuclear energy involves processes like nuclear fission or fusion (not relevant here as burning a log is a chemical process). Chemical energy transforming to nuclear energy (option B and C) is incorrect as there is no nuclear process. Option D is wrong because it's chemical energy (not nuclear) that is transformed.

Answer:

A. Chemical energy is transformed to light energy and heat energy.