Physics I LabPaq: PK-1 Questions
Subject: Physics   / General Physics
Question
The data table that follows shows data taken in a free-fall experiment. Measurements were made of the distance of fall (Y) at each of the four precisely measured times. From this data perform the following:
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1. Complete the table.
2. Plot a graph <y> versus t (plot t on the abscissa, i.e., x-axis).
3. Plot a graph <y> versus t2 (plot t2 on the abscissa, i.e., x-axis). The equation of motion for an object in free fall starting from rest is y = ½ gt2, where g is the acceleration due to gravity. This is the equation of a parabola, which has the general form y = ax2.
4. Determine the slope of the line and compute an experimental value of g from the slope value. Remember, the slope of this graph represents ½ g.
5. Compute the percent error of the experimental value of g determined from the graph in step 4. (Accepted value of g = 9.8 m/s2)
6. Use a spreadsheet to perform the calculations and plot the graphs indicated.
