Motion and Graphing Review - AP2

Motion and graphing review - AP2

Procedure

1. Attach a mass on a string to a free rolling cart and run the string over a pulley at the end of the table. When the mass is released, the free rolling cart should accelerate along the table. 2. Attach the ticker timer tape to the cart and feed the end of the tape through the ticker timer apparatus so that carbon marks will be made when the apparatus is turned on. 3. Turn on ticker timer and release the free rolling cart so that it pulls the tape through the timer. (Instructor will demonstrate #1,#2 and #3) 4. Start at the first distinct mark on tape and consider this to be the starting point for the cart’s run. From this point count six dots and with a ruler measure the distance from the start point to the sixth dot. This is how far the cart traveled in 0.10s. Record the displacement and the corresponding time in a data table. 5. Now measure the total distance from the start point to the 12th dot. This will be the displacement the cart traveled in 0.20s. Record displacement and time. 6. Record the displacement to the 18th dot and consider this to have occurred at 0.30s. Repeat this pattern until approximately ten points have been recorded. 7. Create a graph of displacement (y) vs. time (x) starting at 0,0 as the first point.

Analysis Questions

1. What is the shape of the displacement vs time curve or line for accelerated motion?

2. What does the shape of this graph indicate about the relationship between displacement and time for an object undergoing constant motion?

3. What is happening to the slope of this graph and what does this indicate about the object’s motion? Data Table: Accelerated Motion

Time (s) Distance (cm) Time (s) Distance (cm)