Contextualization

Physics is a science that investigates the fundamental laws that shape the universe, from subatomic particles to entire galaxies. In this project, we will delve into a fundamental topic of classical physics: the marking of forces, or 'Force Diagram'.

The Force Diagram is a simplified way of representing the forces acting on an object. These forces can be contact forces (such as normal force or friction force) or forces at a distance (such as weight force). This theme is key to understanding the concept of equilibrium, Newton's First Law, and especially to solve problems involving forces.

The marking of forces is an essential skill for any science student, engineer, or anyone interested in understanding how things move and interact in the world around us. Whether to understand why a rocket-powered car can move, or to comprehend how skyscrapers withstand the wind, these diagrams are the basis for understanding many phenomena.

All of this has practical applications in everyday life. When you push a shopping cart, you are applying a force. When a bird flies, atmospheric forces are at play. Even the action of getting up from a chair involves forces. Understanding these forces and how they balance is essential to understanding the world around us.

To aid in studies, I suggest the following sources:

• Basic Physics - Volume 1 (Isaac Newton): A solid foundation for those wishing to study Physics. Updated and with easy-to-understand language, it covers from basic concepts to more advanced topics.
• Khan Academy (Link to Physics Course): Free online resource with video lessons on various physics topics, including forces and motion.
• YouTube Channel 'Ciência Todo Dia' (Everyday Science): This channel presents very didactic videos on various Science topics, and has several videos on Physics.

Practical Activity

Activity Title: 'Forces Around: Diagramming our World'

Project Objective

This project aims to provide students with the opportunity to apply theoretical physics concepts to practical problems, encouraging observation, collaboration, and problem-solving in teams. By the end of the project, students should be able to identify, diagram, and explain the forces acting in everyday situations.

Detailed Project Description

Each group of students will be responsible for selecting three everyday objects or situations and identifying the forces acting on each one. Each of these situations must be diagrammed, marking the forces involved, such as weight force, normal force, friction force, among other contact or distant forces.

Required Materials

• Paper or digital drawing software for creating force diagrams.
• Pencils, pens, or image editing software.
• Textbooks, reliable websites, or videos for research.

Detailed Step-by-Step for Activity Execution

1. Form groups of 3 to 5 students.
2. Each group must choose three everyday situations or objects where forces are acting. Ex: A book on a table, an elevator going up, a car braking.
3. Research and study the forces acting in each situation.
4. Develop a force diagram for each situation, identifying and correctly marking each force.
5. Discuss each of the diagrams in the group, ensuring that all members understand and agree on what was represented.
6. Prepare a report following the proposed topics: Introduction, Development, Conclusion, and Bibliography.
7. The report must be written by all group members, where each must contribute to different parts of the report to ensure everyone's participation.
8. The project lasts one week, with each student dedicating two to four hours to complete it.

Project Deliverables

At the end of the project, each group must deliver:

1. Force Diagrams: Three force diagrams, each representing one of the chosen situations. Each diagram must identify all acting forces, their direction, and sense. Each force must be clearly labeled.

2. Report: A written report containing:

   • Introduction: Contextualization and relevance of the study of forces, project objective.
   • Development: Explain the theory of forces, detailed explanation of the diagrams, discussion on the identified forces.
   • Conclusion: Recap the main points, explain the learnings obtained, and the conclusions drawn from the project.
   • Bibliography: Indicate the sources used for the project elaboration and diagram construction.

It is important that the report connects with the practical activity. That is, when describing the forces in the diagrams, it is fundamental that this description is associated with the studied theoretical concepts. Additionally, the group must explain how the forces behave and interact in each situation illustrated by the diagrams.