When a candle burns, which of the following best describes the energy transformations that occur?

• A. Thermal energy is converted to chemical energy and electrical energy.
• B. Chemical energy is converted to thermal energy and light energy.
• C. Mechanical energy is converted to chemical energy and thermal energy.
• D. Light energy is converted to chemical energy and sound energy.

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the process of a candle burning. The candle contains wax, which stores chemical energy in its molecular bonds.
2. Step 2: When the candle burns, a chemical reaction (combustion) occurs, breaking down the wax molecules and releasing energy.
3. Step 3: Identify the forms of energy released during combustion. The chemical energy stored in the wax is transformed into thermal energy (heat) and light energy (flame).
4. Step 4: Recognize that no electrical or mechanical energy is involved in this process, and the energy transformation is from chemical to thermal and light energy.
5. Step 5: Conclude that the best description of the energy transformation when a candle burns is: Chemical energy is converted to thermal energy and light energy.