Page 7 - AP Physics Digital Mini

AP* PHYSICS 1 INQUIRY KITS, CONTINUEDUniform Circular MotionAP Physics 1, Big Idea 3, Investigation 5 Students begin with an introductory activity in which they prac-tice rotating a rubber stopper in a horizontal plane and qualitatively explore the relationship between centripe-tal force and tangential velocity. Next, students vary the amount of force acting on the stopper and calculate the velocity of the stopper for each measured force. Students compare the experimental centripetal force with the theoretical tension in the string and identify sources of experimental error. The results provide a model for the guided-inquiry design of a procedure to identify other factors that affect the centripetal acceler-ation of an object in circular motion. AP7726 I $78.35Conservation of Energy on an Inclined PlaneAP Physics 1, Big Idea 5, Investigation 6 Students use their critical-thinking skills and knowledge of the conservation of energy principle to predict the distance a small steel ball trav-els when launched from an inclined plane set atop a table. In the introductory activity, students determine how changing the release height, mass of the ball and angle of the inclined plane may affect the launch distance. In the guided-inquiry activity, students apply their initial findings to accurately launch a steel ball a specific distance. Differences between experimental and theoretical launch distances (and horizontal velocities) force students to explain energy gains or losses.AP7727 I $98.50Conservation of Elastic Potential EnergyAP Physics 1, Big Idea 5, Investigation 7 This lab begins with an introductory activity in which students propel a spring-loaded cart up an inclined plane. As they perform the introductory activ-ity, students discover the effects (if any) of the inclined plane’s angle and the cart’s mass on its travel distance up the inclined plane. The guided-inquiry activity challenges students to quantify the amount of energy lost by the cart due to friction and propel the cart up the inclined plane a specific distance. AP7728 I $162.30Conservation of Linear MomentumAP Physics 1, Big Idea 4, Investigation 8 An introductory activity famil-iarizes students with collisions by rolling steel balls into each other at various speeds on an aluminum track. This activity gives students a quali-tative understanding of how momentum is conserved. The guided-inquiry activity challenges students to design a procedure to explore momentum conservation in a more quantitative manner. For example, students may use an air track, gliders and photogate timers to assess pre- and post-col-lision speeds of gliders of variable mass. Alternatively, students may use a stopwatch with the aluminum track that was used in the introductory activity. AP7729 I $122.85