Summary
This section introduces physics as the backbone of various scientific and technological fields by highlighting its predictive power through mathematical laws. It covers the importance of units—including the SI system—and demonstrates the procedures of converting units and checking dimensional consistency. Fundamental mathematical tools, such as trigonometric functions, are introduced to solve problems involving right triangles. The differences between scalars and vectors are explained alongside techniques for vector addition, subtraction, and resolution into components, all of which are crucial for solving real-world physics problems.