Pfautz+lab+7


 * Pre-lab Questions:**

1. The velocity of two coffee filters was greater, as the weight was greater than a single coffee filter, and will most likely have a linear relationship with the number of filters. 2. They would fall at about the same rate. 3.



4. When the filter reaches terminal velocity, air resistance is the net force acting upon it.


 * Procedure:**

1. Set up motion detector on ceiling 2. Drop coffee filter .5m from the detector and collect data 3. Check for smooth graph which is a good representation of the fall 4. Use linear fit on the constant part of the graph to find the slope and record it 5. Repeat for 2-5 coffee filters


 * Data Table:**

|| 1.64 m²/s² || || 2.25 m²/s² || || 3.84 m²/s² || || 5.06 m²/s² || || 6.25 m²/s² ||
 * **# of filters** || **Terminal Velocity (m/s)** || **(Terminal Velocity)²(m²/s²)** ||
 * **1** || 1.28 m/s
 * **2** || 1.50 m/s
 * **3** || 1.96 m/s
 * **4** || 2.25 m/s
 * **5** || 2.50 m/s


 * Analysis:**





1. Graphs above 2. The (Terminal Velocity)² is more proportionality consistent with my data and is closer to a straight line that goes through the origin. 3. (cv)² fits my data better because it again is closer to a straight line that goes through the origin. 4. The time of fall decreases as the weight increases.This is because a larger weight means there is a faster velocity so the object falls more quickly.