Falling Objects Lab AP Physics Purpose: The purpose of this lab is to become familiar and gain experience calculating “g” understanding that “g” is a constant and how objects behave under a constant acceleration. Materials: iPad, Pasco Motion Sensor, Stop Watch, Hand Ball, Ruler, Paper, Pencil, smart timer, picket fence, and photogate Procedure: 1. Using Bluetooth connect the motion sensor to your iPad. Use the Sensor to track the motion of your handball by throwing it up in the air. a. Save your graphs 2. By looking at the graphs what conclusions can we make about falling objects? a. Can you estimate the acceleration due to gravity? 3. Measure “g” using a smart timer, picket fence, and photo gate. 4. Calculate “g” using a handball and stopwatch. Use the fact that the 2nd floor railing is 4.83m high. (Hint: you may need to use one of the kinematic equations p 27) a. Everyone in the group needs to show their own work and have a copy of the group’s data. b. We will compile everyone’s data, so be prepared to share. 5. Now Measure reactions times of everyone in the group using the ruler and the “g” found in your book. a. One person drops the ruler between another person’s fingers… b. Write down everyone’s reaction time. 6. Write a Conclusion about what you learned in this lab and how it helps you understand kinematics. You should include in your conclusion an error analysis.