Question
What evidence supports the law of conservation of energy?
Mechanical energy is converted to chemical energy during photosynthesis.
Oxygen is made from the breakdown of carbon dioxide during photosynthesis.
Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis.
The sun gives off light energy that is absorbed by plants.
Mechanical energy is converted to chemical energy during photosynthesis.
Oxygen is made from the breakdown of carbon dioxide during photosynthesis.
Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis.
The sun gives off light energy that is absorbed by plants.
Answers
GPT-4o mini
The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. The evidence that supports this law from your options relates specifically to how energy is transformed during the process of photosynthesis in plants.
1. **Mechanical energy is converted to chemical energy during photosynthesis.** - This statement is not accurate as mechanical energy does not play a significant role in photosynthesis. Photosynthesis primarily involves light energy from the sun.
2. **Oxygen is made from the breakdown of carbon dioxide during photosynthesis.** - This statement is misleading. During photosynthesis, oxygen is produced from the splitting of water molecules, not directly from carbon dioxide.
3. **Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis.** - This statement accurately describes the process of photosynthesis. Light energy absorbed by chlorophyll is converted into chemical energy, which supports the law of conservation of energy as it demonstrates energy transformation rather than creation or destruction.
4. **The sun gives off light energy that is absorbed by plants.** - This statement also supports the law of conservation of energy, as it illustrates that energy from the sun (light energy) is taken in by plants and then transformed into chemical energy during photosynthesis.
In summary, the most relevant evidence supporting the law of conservation of energy is that **energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis**. This highlights the transformation of energy from light to chemical forms without any loss or creation of energy.
1. **Mechanical energy is converted to chemical energy during photosynthesis.** - This statement is not accurate as mechanical energy does not play a significant role in photosynthesis. Photosynthesis primarily involves light energy from the sun.
2. **Oxygen is made from the breakdown of carbon dioxide during photosynthesis.** - This statement is misleading. During photosynthesis, oxygen is produced from the splitting of water molecules, not directly from carbon dioxide.
3. **Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis.** - This statement accurately describes the process of photosynthesis. Light energy absorbed by chlorophyll is converted into chemical energy, which supports the law of conservation of energy as it demonstrates energy transformation rather than creation or destruction.
4. **The sun gives off light energy that is absorbed by plants.** - This statement also supports the law of conservation of energy, as it illustrates that energy from the sun (light energy) is taken in by plants and then transformed into chemical energy during photosynthesis.
In summary, the most relevant evidence supporting the law of conservation of energy is that **energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis**. This highlights the transformation of energy from light to chemical forms without any loss or creation of energy.