ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG086002: When warmer river water flows into a lake with cooler water, the lake water will get warmer.
A river flows into a lake. The river water is warm, and the lake water is cold. What happens to the temperature of the lake water when the warm river water flows into the lake?
- The lake water will get cooler.
- The lake water will get warmer.
- The lake water will not change temperature.
- The lake water will only change temperature if the river water is much warmer than the lake water.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
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|---|---|---|---|---|---|---|---|---|---|
| n = 3607 |
4–5 n = 724 | 6–8 n = 1565 |
9–12 n = 1318 |
Male n = 1676 |
Female n = 1836 |
English n = 3199 |
Other n = 305 |
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| A. | The lake water will get cooler. | 10% | 14% | 10% | 8% | 10% | 10% | 9% | 14% |
| B. | The lake water will get warmer. | 48% | 43% | 48% | 50% | 50% | 46% | 49% | 40% |
| C. | The lake water will not change temperature. | 13% | 16% | 11% | 14% | 14% | 12% | 13% | 16% |
| D. | The lake water will only change temperature if the river water is much warmer than the lake water. | 29% | 27% | 30% | 29% | 26% | 32% | 29% | 30% |