Select Program Area --Select Program Area-- ESE HOME Accountability, Partnership, & Assistance Adult & Community Learning Amazing Educators BOE Advisory Councils Board of Elementary & Secondary Education Career/Vocational Technical Education Charter Schools College and Career Readiness Compliance/Monitoring (PQA) Conferences, Workshops and Trainings Curriculum & Instruction Digital Learning District & School Assistance Centers (DSACs) District & School Turnaround District Review, Analysis, & Assistance Tools Educator Evaluation Educator Licensure Tests (MTEL) Educator Licensure Educational Proficiency Plan (EPP) Edwin ELAR Log In Employment Opportunities: ESE English Language Learners Every Student Succeeds Act (ESSA) Family Literacy High School Equivalency (HSE) Testing Program Grants/Funding Opportunities Information Services Laws & Regulations Learning Supports and Early Learning (OLSEL) Literacy LEAP Project MCAS MCAS Appeals METCO Office for Food and Nutrition Programs Performance Assessment for Leaders (PAL) Planning and Research Professional Development Race to the Top (RTTT) RETELL Safe and Supportive Schools School and District Profiles/Directory School Finance School Redesign Science, Technology Engineering, and Mathematics (STEM) Security Portal | MassEdu Gateway Special Education Special Education Appeals Special Education in Institutional Settings Statewide System of Support Student Support Title I/Federal Support Programs Systems for Student Success (SfSS)
 Students & Families Educators & Administrators Teaching, Learning & Testing Data & Accountability Finance & Funding About the Department Education Board

# Massachusetts Comprehensive Assessment System

## 2011, High School Intro Physics

 Question 45: Open-Response Reporting Category: Heat and Heat TransferStandard: 3.3 - Describe the relationship between average molecular kinetic energy and temperature. Recognize that energy is absorbed when a substance changes from a solid to a liquid to a gas, and that energy is released when a substance changes from a gas to a liquid to a solid. Explain the relationships between evaporation, condensation, cooling, and warming. On a hot day, a student places a glass of cold lemonade on a table outdoors. After a few minutes, water droplets have formed on the outside of the glass.Is energy absorbed or released by the cold lemonade? Explain your answer.Compare average kinetic energy for the air molecules and lemonade molecules when the student first places the lemonade outdoors. Explain your answer.Explain how and why the water droplets form on the outside of the glass.

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

ScoreDescription
4 Response demonstrates a thorough understanding of the relationship between average molecular kinetic energy and temperature; the relationships among evaporation, condensation, cooling, and warming; and that energy is absorbed when a substance changes from a solid to a liquid to a gas. The response identifies that heat is absorbed and explains why. The response correctly compares the average kinetic energy of the air molecules and lemonade molecules and explains this comparison. The response also thoroughly explains how and why the water droplets form on the outside of the glass.
4
3 Response demonstrates a general understanding of the relationship between average molecular kinetic energy and temperature; the relationships among evaporation, condensation, cooling, and warming; and that energy is absorbed when a substance changes from a solid to a liquid to a gas.
2 Response demonstrates a limited understanding of the relationship between average molecular kinetic energy and temperature; the relationships among evaporation, condensation, cooling, and warming; and that energy is absorbed when a substance changes from a solid to a liquid to a gas.
1 Response demonstrates a minimal understanding of the relationship between average molecular kinetic energy and temperature; the relationships among evaporation, condensation, cooling, and warming; and that energy is absorbed when a substance changes from a solid to a liquid to a gas.
0 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...