## Questions for Coefficient of Friction Lab

First period labs can be found at 1stPeriod Labs. Select your lab.
Third period labs can be found at 3rdPeriod Labs. Select your lab.
Fourth period labs can be found at 4thPeriod Labs. Select your lab.
Fifth period labs can be found at 5thPeriod Labs. Select your lab.
Sixth period labs can be found at 6thPeriod Labs. Select your lab.

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1st period
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3rd period
4th period
5th period
6th period

All answers must be in complete sentences. Show your work. In questions that require calculations, please carefully label each analysis sectin as procedure 1, followed by the work for procedure 1, procedure 2, followed by the work for procedure 2, procedure 3, followed by the work for procedure 3, and procedure 4, followed by the work for procedure 4.
1. Calculate the total mass in kilograms accelerated for each procedure.

2. Calculate the unbalanced force causing the acceleration for each procedure.

3. Calcualte the applied force in Newtons for each procedure.

4. Apply Newton's second law to your experiment. Calculate the frictional force for each procedure.

5. Calculate the normal force for each procedure.

6. Calculate the coefficient of friction for each procedure.

7. How does the coefficient of friction vary with the mass of the block? What conclusion can be drawn about the dependency of the frictional force on the mass of the object? Refer to your results for procedures 1 and 2.

8. How does the coefficient of friction vary with material type? What conclusion can be drawn about the dependency of the frictional force on the material type? Refer to your results for procedures 1,3, and 4.

Conclusion: In your conclusion, answer the purpose in complete sentences. State what value that you found experimentally for the coefficient of friction for each procedure. State what factors affected the coefficient of friction and support your statement by referring to your data. State what factors affected the frictional force and support your statement by referring to your data.