Activity Data Code MCQ
Table I – Common Data
Complete the table below using data found under the Activity-Form tab and information found under the
... [Show More] Background tab (see the Summary of Needed Formulas section at the very end).
Sample Calculation: Show your normal force magnitude calculation for the Quartz cube below.
Sample Calculation: Show your normal force magnitude calculation for the Gold cube below.
Table II - Coefficient of Static Friction: Procedure 1 Data
Complete the table below using results from Table I, data from your Velocity Plots (see the Velocity Plots tab), and information found under the Background tab (see the Summary of Needed Formulas section at the very end).
Sample Calculation: Show your coefficient of static friction calculation for the Ruby cube below.
Observations and Questions
[1] What accounts for the different values of minimum applied force for each cube?
[2] Which type of motion occurs in this situation: accelerated or constant velocity? Why? Explain how your velocity plots support your answer. Hint: review the “Understanding and Interpreting Velocity vs Time Plots” section of the Background material (see Background tab).
Sample Calculation: Show your coefficient of kinetic friction calculation for the Aluminum cube.
Observations and Questions
[1] Why is there a difference between the force needed to start a cube moving and the force needed to obtain constant velocity motion?
[2] Why do we need constant velocity for this particular analysis? Hint: think about how the force of kinetic friction and the applied force compare to one another in this situation.
[3] Describe how your velocity plots in this case are different from the static friction analysis. Note: your instructor may require you to submit velocity plots in support of this analysis.
Table IV - Coefficient of Kinetic Friction: Procedure 3 Data
Complete the table below using results from Table I, data from the Activity (see the Activity tab), and information found under the Background tab (see the Summary of Needed Formulas section at the very end). [Show Less]