Question

you burn a log on a fire. you use the fire to warm yourself and to light up the room to read a book. which energy transformation is taking place?
a. nuclear energy is transformed to potential energy and thermal energy
b. chemical energy is transformed to nuclear energy and thermal energy
c. chemical energy is transformed to light energy and thermal energy
d. thermal energy is transformed to light energy and chemical energy

Explanation:

Step1: Analyze the log - burning process

A log has chemical energy stored in it. When it burns, a chemical reaction occurs.

Step2: Identify the energy outputs

The fire gives off heat (thermal energy) and light (light energy).

Answer:

C. Chemical energy is transformed to light energy and thermal energy