@article{Moss_2022, title={Acceleration and Force in Uniform Circular Motion}, volume={3}, url={https://pac.pogil.org/index.php/pac/article/view/194}, abstractNote={<p>Uniform circular motion (an object moving at a constant speed along a circular path) is a simple but important example of non-linear motion. In this activity, students first make qualitative experimental observations about the force needed to produce this kind of motion. Students are next presented with a Model that shows the velocity vectors at two points during uniform circular motion and are guided through the process of calculating the magnitude and direction of the average acceleration for a specified angle. Student groups report results for different angles and the pattern generated as the angle decreases allows them to discover the concept of instantaneous acceleration. A theoretical derivation of the formula for instantaneous acceleration is presented, after which students verify that the theory confirms their calculations about acceleration and preliminary observations about force.</p> <p> </p> <p>Level: High School<br>Setting: Laboratory<br>Activity Type: Learning Cycle</p> <p>Discipline: Physics<br>Course: Physics (algebra-based)<br>Keywords: uniform circular motion; centripetal force</p> <p> </p>}, number={1}, journal={POGIL Activity Clearinghouse}, author={Moss, David}, year={2022}, month={Feb.} }