An oven is being used to bake cookies in a house with solar panels on the roof. What energy transformations occur when baking cookies in this house?
A. heat energy → electrical energy → chemical energy
B. heat energy → chemical energy → light energy
C. heat energy → light energy → chemical energy
D. light energy → electrical energy → heat energy
The correct answer is A. heat energy → electrical energy → chemical energy.
In this scenario, the solar panels on the roof of the house convert light energy from the sun into electrical energy. This electrical energy is used to power the oven, where it is transformed into heat energy. This heat energy is then transferred to the dough, causing a chemical reaction that bakes the cookies.
The correct answer is:
C. heat energy → light energy → chemical energy
Explanation:
When baking cookies in a house with solar panels, the process involves the following energy transformations:
1. Heat energy: The oven uses electrical energy to generate heat energy.
2. Light energy: The solar panels on the roof convert sunlight into electrical energy, which powers the oven. This electrical energy is then transformed into light energy within the oven.
3. Chemical energy: The light energy from the oven is absorbed by the cookies, causing the chemical reactions to occur, leading to the transformation of energy within the cookies.
Therefore, the energy transformations occurring when baking cookies in a house with solar panels are heat energy → light energy → chemical energy.