In determining how we would assess our project, students would do the following:
1. Students would analyze the structure and components of a working model of centripetal force. To determine their understanding of the model, they would be required to answer a problem set associated with the model (15% of the evaluation)
2. Upon completion of this portion of the project, students would then conduct a real-time experiment with a radio-operated toy car going around a lazy susan using a force sensor with CBL/MBL equipment and a stopwatch (initially) followed by a more accurate method of their design to determine rotational velocity. Their results would be written up in a lab report. We would specifically assess the data acquizition (5%), data analysis (5%) and evaluation section of the lab (15%). The evaluation section would have greater weight because students would be required to compare their real time data with the Stella model and devise a method to address the differences and incorporate those differeneces into the model (we are refering to additional variables such as friction that will cause systemic and random errors). They then would be required to adapt the model to address these variables.
3. Upon completion of the second portion of the project, students would then be asked to develop a more sophisticated model to address angular acceleration/deceleration. They would do a real-time experiment similar to that done in part 2. They would develop the model to address the mathematics of angular acceleration and adjust their model to correctly determine the central pulling force acting on the car. They would submit a written lab-report on their findings and give an oral presentation to the class. The assessment of this portion of the project would be as follows: Data Acquisition (10%), Data Analysis (10%) Evaluation (10%) Design of Model (20%), Peer evaluation of teamwork skills (5%) and Oral Presentation (5%).
Put more simply:
- 15% Problem Set
- 25% Centripetal Force Lab 1
Data Acquizition Section (5%)
Data Analysis Section (5%)
Evaluation section (15%)
- 50% Centripetal Force Lab 2
Data Acquizition Section (10%)
Data Analysis Section (10%)
Evaluation section (10%)
Design of Stella Model (20%)
- 5% Teamwork
- 5% Oral Presentation
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