Physics 2 Lab 2 Report

.pdf

School

Lehigh University *

*We aren’t endorsed by this school

Course

022

Subject

Physics

Date

Feb 20, 2024

Type

pdf

Pages

Uploaded by JusticeCloverGorilla482

Tori Groves and JR Predelli 01/29/2024 Coulomb’s Law Physics 22 Experiment 2 Lab Report Spring 2024 Purpose: We will explore the connection between the Coulomb force, charge magnitude, and distance between the charges by charging objects through induction and conduction and measuring the distance of separation between the two charged objects. We will then be able to calculate the Coulomb force based on deflection and analyze graphs depicting the Coulomb's force correlation with distance and charge magnitude. List Of Materials: ● 2 Guide blocks with sphere ● 1 Hanging sphere ● Mirror ● Ruler ● White vinyl strip ● Box set ● Black wool ● Excel Diagram of Apparatus:

Procedure: Part A: 1. Convert the mass of the styrofoam sphere (0.070 grams) to kilograms and record it, and make sure the hanging sphere is at the same height as the sphere attached to the guide block. 2. When measuring position, use one eye, and record d o (equilibrium position). Using a ruler, record L (vertical distance). 3. Touch the sphere with your finger to make sure there is no charge, and then rub the white vinyl strip quickly with the black wool to induce a charge on the guide block sphere. 4. Bring the guide block sphere close to the vinyl strip without letting them touch, touch the sphere with your finger and pull away the strip. Any contact with the strip and the sphere at any point in the lab will require you to restart. 5. Slide the guide block into the right opening of the box, move it toward the hanging sphere until they touch, observing their behavior before and after contact to ensure the hanging sphere acquires the same charge as the guide block. Repulsion should occur with the same charge. 6. Charge the guide block sphere and transfer it to the hanging sphere at least two more times; once it is charged, do not let the spheres touch again. Repeat steps 6-7 one more time. 7. In Excel, create a table with 6 columns. Insert the guide block into the box so that the sphere is centered on the 9.0 cm mark. Push the guide block toward the hanging sphere until it is displaced a few mm, and record the location of the guide block and hanging sphere in the first two columns. 8. Repeat step 12 5 more times with new positions of the guide block sphere, and do not touch the sphere or recharge it. Solve for d, r, and F in the table. 9. Create a plot of F vs. r^2. Include a trend line with an equation for R^2 value. Discuss results. Part B: 1. Discharge both spheres, and repeat steps 6-10 in Part A. In Excel, create a table with 6 columns similar to the one in Part A. 2. Move the guide block to the 5.0 cm mark (if it doesn’t make it, you can recharge the spheres or start at a location close and change the excel column). Allow the hanging sphere to be repelled, and record position. 3. Withdrawal the guide block, ensuring the sphere does not touch anything, then discharge the sphere of the second guide block before inserting the second guide block into the box on the left and let it touch the hanging sphere. Half of the charge will be transferred. 4. Repeat step 3, and then repeat steps 4 and 5 more times if possible or until there is no more deflection.

5. Complete the rest of the table by following step 14 in Part A, and create a plot of F vs. |q 1 ||q 2 |, including a trend line with an equation with an R^2 value. Discuss results. Part A Data, Graphs, and Calculations: Mass = 0.07g / 1000 = 0.00007 kg d o = 5.3 cm = 0.053 m L = 0.183 m Table 1: Guiding Block Sphere Position (cm) Hanging Sphere Position (cm) d (m) r (m) 1/r^2 (m^-2) F (N) 7 5.1 0.002 0.019 2770.08310 2 0.00000750 4918033 6.1 4.4 0.009 0.017 3460.20761 2 0.00003377 213115 6.2 4.5 0.008 0.017 3460.20761 2 0.00003001 967213 6 4.5 0.008 0.015 4444.44444 4 0.00003001 967213 6 4.4 0.009 0.016 3906.25 0.00003377 213115 6 4.4 0.009 0.016 3906.25 0.00003377 213115 Sample Calculations: d = | 5.1 cm - 5.3 cm | / 100 = 0.0020 m r = | 5.1 cm - 7 cm | / 100 = 0.019 m 1/r^2 = 1 / 0.019 m = 2770.08 m F = 0.00007 kg * 9.81 m/s^2 * 0.002 m / 0.183 m = 0.0000075 N Graph 1:

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Recommended textbooks for you

Principles of Physics: A Calculus-Based Text

Physics

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

Physics for Scientists and Engineers

Physics

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

Physics for Scientists and Engineers with Modern ...

Physics

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

College Physics

Physics

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:OpenStax College

Physics for Scientists and Engineers, Technology ...

Physics

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Cengage Learning

Physics for Scientists and Engineers: Foundations...

Physics

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Cengage Learning

SEE MORE TEXTBOOKS

Recommended textbooks for you

Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning