Question

which forms of energy are observed as a candle at rest quietly burns?
select all that apply
a electrical
b thermal
c chemical
d electromagnetic radiation
check it

Explanation:

• Option a (electrical): A candle burning doesn't involve electrical energy as there's no electrical source or process here.
• Option b (thermal): Burning candles release heat, so thermal energy (heat) is observed.
• Option c (chemical): The wax undergoes a chemical reaction (combustion) with oxygen, so chemical energy is involved in the reaction (and converted to other forms).
• Option d (electromagnetic radiation): Candles produce light, which is a form of electromagnetic radiation (visible light).

Answer:

b. thermal, c. chemical, d. electromagnetic radiation