Joaquin is using his oven to bake cookies for his family. What energy transformations occur that enable him to bake cookies? a heat energy → chemical energy → light energy b light energy → electrical energy → chemical energy c heat energy → light energy → heat energy d light energy → electrical energy → heat energy
The correct answer is:
c) heat energy → light energy → heat energy
Explanation:
When Joaquin uses his oven to bake cookies, the primary energy transformation occurs in the form of heat energy. Electricity, supplied to the oven, is converted into heat energy which causes the oven to generate heat. This heat energy is then used to bake the cookies.
During the baking process, the cookie dough undergoes a chemical reaction. The heat energy is transferred to the cookies, causing the chemical reactions within the dough that result in the cookies being baked. This can be considered a transformation from heat energy to chemical energy.
Furthermore, when the oven is turned on and in operation, it typically emits light energy as a byproduct. However, in terms of energy transformations directly related to the baking process, light energy is not a crucial component, as the primary energy input is in the form of heat energy.
Therefore, the correct sequence of energy transformations in this scenario is heat energy → chemical energy → heat energy.