PHYS.7.A

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The student is expected to calculate and explain work and power in one dimension and identify when work is and is not being done by or on a system;
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Knowledge and Skills Statement

Science concepts. The student knows that changes occur within a physical system and applies the laws of conservation of energy and momentum.

the rate at which energy is transferred

regularly interacting or interdependent group of items forming a unified whole

measure of energy transfer that occurs when an object is moved through displacement by an external force; requires displacement parallel to the force

Research

Tong, Dazhen, Jia Liu, Yechao Sun, Qiaoyi Liu, Xiangqun Zhang, Sudong Pan, and Lei Bao. "Assessment of Student Knowledge Integration in Learning Work and Mechanical Energy." Physical Review Physics Education Research 19, no. 1 (2023): 010127. https://doi.org/10.1103/PhysRevPhysEducRes.19.010127

Summary:  Studies in existing literature have shown that students have difficulties in understanding work and mechanical energy, particularly the work-energy theorem. To study students’ knowledge integration in learning work and mechanical energy, a conceptual framework model of work and mechanical energy was developed and applied to guide the design of an assessment for measuring students’ level of knowledge integration. The conceptual framework of work and mechanical energy and assessment results can provide useful information to facilitate instructional designs to promote knowledge integration.