Context

The concept of Electric Potential is one of the main foundations of modern Physics and is deeply and intrinsically linked to the world as we know it. It is the key that unlocks the understanding of electricity and all the practical phenomena and applications that derive from it.

At its core, electric potential is a measure of the work done by an electric force to move a positive test charge from one point to another. It is expressed in Volts and, simplistically speaking, can be thought of as the electrical 'height' of a point.

In order to better understand this concept, we need to recall the idea of an electric field. An electric field exists at any point in space where an electric charge would feel a force. Each point in this field has a specific value of electric potential.

In the real world, electric potential is a key element in a myriad of applications. From the operation of simple electronic devices, like the cell phone you probably have in your hands for most of the day, to more complex technologies such as tomographs and particle accelerators. Electricity is the pulsating soul of our globalized and digital society.

Therefore, understanding the concept of electric potential is not only fundamental for your Physics exams, but also for gaining a greater understanding and appreciation for the world and the wonders of technology that surround us.

To deepen your knowledge on the subject, we recommend the following sources:

• Brazil School - Electric Potential
• Just Physics - Electric Potential
• YouTube - 'What is Electric Potential?' - Channel Science Every Day

Practical Activity

Activity Title: 'Mastering the Concept of Electric Potential'

Objectives:

1. Understand and apply the concept of Electric Potential.
2. Perform calculations related to Electric Potential and other quantities.
3. Work in a team, dividing tasks and collaborating to complete the project.

Description:

Students should divide into groups of three to five people. Each group should build a model representing real-world scenarios where electric potential is an important variable. These scenarios may include a battery, a power transformer, an electric circuit, or any other situation where electric potential plays a relevant role.

Required Materials:

1. Cardboard for the base of the model.
2. Materials for building the elements of the model (paper, cardboard, modeling clay, matchsticks, etc.).
3. Colorful pens and markers.
4. Ruler and compass.
5. Calculator.
6. Books and internet resources for reference.

Detailed Step-by-Step:

1. Groups should gather and decide on the scenario they will represent in their model.
2. Next, they should gather information about the chosen scenario, focusing on understanding how electric potential is relevant in that situation.
3. With the acquired knowledge, groups should plan how they will represent the scenario in the model, which elements they will include, and how they will symbolize electric potential and its variation in that scenario.
4. After planning, groups should build the model using the available materials.
5. Once completed, groups should take measurements and perform calculations to determine the electric potential at different points in the model.
6. Finally, groups should prepare a presentation explaining the represented scenario, how electric potential works in it, and the calculations performed.

With the practical activity completed, it's time to work on the report. It should include:

1. Introduction: Provide context on the topic, explain the relevance of electric potential in the real world, and establish the project's objective. Which scenario was chosen and why? How is electric potential important for this scenario?

2. Development: Here, you should explain the theory behind electric potential. How is it defined? What is the relationship with other quantities? Discuss the activity in detail, explaining the model scenario, how it was built, which elements were included to represent electric potential. Also, talk about the methodology used to take measurements and perform calculations and present the results obtained.

3. Conclusion: In this section, summarize the main points of the activity. What was learned throughout the process? What conclusions can be drawn about the concept of electric potential and its application in the chosen scenario?

4. Bibliography: List all sources consulted during the process, including books, websites, videos, and others.

All group members should contribute to the report, which must be submitted within one week.