This lab uses theCoulomb's Law(https://phet.colorado.edu/sims/html/coulombs-law/latest/coulombs-law_en.html) simulation from PhET Interactive Simulations at the University of Colorado Boulder, under the CC-BY 4.0 license.

Please provide answers to all the questions. When calculating the electrostatic force between two charges, your submission should include a handwritten solution that shows a step-by-step use of Coulomb's law along with the result you obtained using the PhET simulation.

QUESTION 1. Balloons and Static Electricity, Use this link; https://phet.colorado.edu/sims/html/balloons-and-static-electricity/latest/balloons-and-static-electricity_en.html

REVIEW QUESTION

Balloon Experiment.

Material:

Computer access at lab station for PhET activity

PhET Computer simulation Balloons and Static Electricity

https://phet.colorado.edu/en/simulation/balloons

Instructions:

Go to the PhET site and simulation listed above.

Rest the balloon and make sure there is only one balloon selected

Take the balloon and drag it to the right towards the wall.

Now drag the balloon over the sweater on the left and pick up 3-6 negative particles

Bring the balloon towards the wall

Repeat, but this time pick up all the negative particles

Now release the balloon in the middle of the screen where it originated

Virtual Experiment

Question 2. Coulomb's Law, Use this link; https://phet.colorado.edu/sims/html/coulombs-law/latest/coulombs-law_en.html

2. Open the Macro Scale screen and explore the forces between two charged bodies.

And then please answer the rest of the questions (question 3 to 8)

Lab 3: Electric Forces This lab uses the Coulomb's Law simulation from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4.0 license. https://phet.colorado.edu/sims/html/wave-interference/latest/wave- interference en.html Review Question: 1. Two balloons were rubbed on a sweater like in the Balloons and Static Electricity and then hung like in the picture below. Explain why you think they move apart and what might affect how far apart they will be. Virtual Experiment 2. Open the Macro Scale screen and explore the forces between two charged bodies. Force on q2 by q, = 319.557 N Force on q, by q2 = 319.557 N -....." Charge 1 Charge z Force Values 4 PIC 8 HC Scientific Notation Coulomb's Law - Macro Scale PHET.Explain your understanding: 3. Using the PhET simulation design an experiment that enables you to determine what makes a force attractive or repulsive. Describe your experiments and observations with some examples. 4. What evidence do you see that Newton's third law applies to electrostatic forces? 5. How does the value of the electrostatic force vary with the value of the charges? 6. How does the value of the electrostatic force vary with the distance between them? Apply Coulomb's law: 7. Coulomb's equation is used for determining the force between 2 charged bodies separated by a distance F = k'h'jz T Where k is Coulomb's constant, q is charge of body (in Coulombs, C), r is the distance between bodies (in meters), and F is the electrostatic force (in Newton, N) a. Use measurements to determine Coulomb's constant for at least 2 situations. Show your work and include an image of experiments. Verify your value with research and include citations. b. Using your value of k, determine the electrostatic force for these 2 situations: 1. -6uC charge is 4cm from a 4uC charge. ii. An electron has a charge of -1.6x10"C and a proton has a charge of 1.6x10- C.In a hydrogen atom, the distance between them is 5.3x10"'m. Determine the electrostatic force between them. c. Open the full Coulomb's Law simulation to check your work. Describe how you used the simulation and include images for support. 8. Explain how electric forces are like gravitation forces and how they differ