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Massachusetts Comprehensive Assessment System

2012, High School Intro Physics

 Question 45: Open-Response Reporting Category: Heat and Heat TransferStandard: 3.2 - Explain how heat energy will move from a higher temperature to a lower temperature until equilibrium is reached. A can of juice at 20°C is completely submerged in a closed, insulated container filled with water at 4°C, as shown in the diagram below.Describe what happens to the temperature of the can of juice and the temperature of the water in the container within the first few minutes after the can is submerged. Explain your answer.After four hours, will the can and the water have the same temperature or different temperatures? Explain your answer.Estimate the numerical value(s) of the final temperatures of the can of juice and the water after four hours. Explain your answer.

Scoring Guide and Sample Student WorkSelect a score point in the table below to view the sample student response.

ScoreDescription
4 The response demonstrates a thorough understanding of how heat energy will move from a higher temperature to a lower temperature until equilibrium is reached. The response correctly describes and explains the changes in temperature of the can of juice and the water after the can is first submerged and after four hours. The response also estimates final temperatures for the can of juice and the water, and explains the answer.
4
3 The response demonstrates a general understanding of how heat energy will move from a higher temperature to a lower temperature until equilibrium is reached.
2 The response demonstrates a limited understanding of how heat energy will move from a higher temperature to a lower temperature until equilibrium is reached.
1 The response demonstrates a minimal understanding of how heat energy will move from a higher temperature to a lower temperature until equilibrium is reached.
0 The response is incorrect or contains some correct work that is irrelevant to the skill or concept being measured.

Note: There are 2 sample student responses for Score Point 4.

None found...