Exploring Collisions with EJSS Simulation and Data Analytics after it is assigned out as an Assignment
The EJSS (Easy JavaScript Simulations) platform has introduced an interactive simulation designed to help students explore different types of collisions: elastic, partially elastic, and perfectly inelastic. By integrating data analytics, this tool not only allows students to visualize these collisions but also helps teachers assess student understanding and progress.
Overview of the Simulation (Picture 1)
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The simulation setup features two carts with adjustable masses and initial velocities, positioned for collision on a linear track. The data analytics-enabled interface offers real-time force graphs, allowing students to observe and analyze the interactions during collisions. The simulation supports three types of collisions:
- Perfectly Elastic Collision: e = 1, Both kinetic energy and momentum are conserved. The carts bounce off each other without losing energy to heat or deformation.
- Partially Elastic Collision: 0 < e < 1, Momentum is conserved, but some kinetic energy is lost to heat, sound, or deformation. The carts bounce off each other but with reduced speeds.
- Perfectly Inelastic Collision: e = 0, The carts stick together post-collision, resulting in the maximum possible loss of kinetic energy while conserving momentum.
Student Interaction and Assessment (Pictures 2 to 4)
As students explore the different types of collisions, they are tasked with answering three questions related to each type:
- Q1: Elastic Collision
- Q2: Partially Elastic Collision
- Q3: Perfectly Inelastic Collision
Each question is linked to the type of collision being analyzed. The student’s interactions and responses are recorded in a teacher’s dashboard, which is a part of the EJSS environment. As demonstrated in the screenshots, the dashboard displays the student's answers alongside the corresponding collision type and parameters (such as masses and velocities).
Awarding Marks (Picture 5)
The dashboard automatically assigns marks based on the student's exploration of all three collision types. If a student completes the exploration and answers all three questions, they are awarded a mark for each correct response. The final mark reflects the student’s ability to correctly engage with all the concepts presented in the simulation.
Conclusion
This EJSS simulation with integrated data analytics provides an effective tool for teaching and assessing understanding of momentum and energy conservation in different types of collisions. The real-time feedback and visualization help students grasp complex physics concepts, while the teacher's dashboard offers a streamlined way to monitor and evaluate student progress.
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