In this lab, we’ll use spark timers to confirm our value for “g.”

Attach a mass to a piece of spark tape.
Let if fall, pulling the tape through the timer.
In this lab, it is not necessary to yell, “WHEEE!” However, you must yell something.

Graphing Instantaneous Velocity:
Follow the analysis steps in “Red Right Hand.”
Graph the velocity of your hand (y-axis) vs. total time passed.
Calculate your acceleration (calculate the average slope on your velocity / time graph).
Compare this value to 9.81 m/s2.

Questions:
1. Did your graph show a constant acceleration? Explain. 3 points
2. You drop a dart out of a hot air balloon. How fast is it going after 3 seconds? … after 6 seconds? 2 points
3. How far has the dart fallen after 3 seconds? … after 6 seconds? 3 points
4. If you doubled the weight hanging off the spark tape, how would that affect the motion? 2 points