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Lab 4 Part 1 (Friction) - Grade: A

Course

Fundamentals of Physics I (PHYS 103)

15 Documents
Students shared 15 documents in this course
Academic year: 2020/2021
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Deshola A.
Howard Community College
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Lab Report for Friction (Part 1)

Oyinda Adeyemo Lab Instructor: Professor Savanna Smith Date: September 25, 2020

Equipment and Materials:  Phyphox app  Table  Tape Measure  Pencil  Paper binder  Phone Experiment 1 Experimental Procedure a. Open the phyphox app, select acceleration without g b. Set the phone on a table with its phone case on c. Mark starting point with a pencil d. Measure 10cm from the starting point e. Start taking data and slide phone within the 10cm range and less than 15cm f. Hit stop and record data Data and Observations The phone moved from the starting point that was marked and went past the 10cm. The point where the phone moved to was marked and was measured which ended up being 10. This value was less than 15cm but greater than the

Graph of Acceleration vs. Time

Uncertainty of the measurement:

Experiment 2

Experimental Procedure

Set up a ramp. Stack two objects on one another with the object above slightly across the one below Place phone and a phone adaptor on the object above and make sure the starting degree is at 0 Slowly tilt the object above till the adaptor reaches the critical point where the adaptor starts to move Data and calculation Starting degree (°) Critical Point (°) Trial 1 0 21 Trial 2 0 19 Trial 3 0 22 Trial 4 0 24

Average critical point = 21 + 19 + 422 + 24 = 21 °

Conclusion In experiment 1, on the acceleration vs time graph, the phone had a constant acceleration, then had a break which was from the phone gliding before coming to a stop. The uncertainty was ± 0 because the phone had moved a bit further than 10cm.

For experiment 2, with the help of the YouTube video posted, the coefficient of the static friction was 0. Four trial were done and an average of the critical point was taken.

In conclusion, the experiment was understood and performed. No sources of error were noticed during these experiments.

References

youtu/vWzjhKifwcU

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Lab 4 Part 1 (Friction) - Grade: A

Course: Fundamentals of Physics I (PHYS 103)

15 Documents
Students shared 15 documents in this course

University: Howard Community College

Was this document helpful?
Adeyemo 1
Lab Report for Friction (Part 1)
Oyinda Adeyemo
Lab Instructor: Professor Savanna Smith
Date: September 25, 2020

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