This short lesson introduces one of the most fundamental concepts in statics: force. It is designed for beginners in mechanical and civil engineering who need a quick and clear understanding of how forces work in physical systems.

Force is defined as a push or pull that can change the motion, shape, or state of rest of an object. In statics, forces are analyzed when objects are in equilibrium, meaning they are not accelerating and all applied forces are balanced.

The lesson explains that forces have both magnitude and direction, making them vector quantities. This means that understanding direction is just as important as understanding size when analyzing engineering problems.

Learners will also explore how forces interact within structures and mechanical systems, including how multiple forces can combine or cancel each other out. This is essential for ensuring stability in bridges, machines, and buildings.

A basic overview of force types is also included, such as contact forces and body forces like gravity.

By the end of this lesson, learners will have a clear understanding of what force is and why it is the starting point for all statics and mechanics of materials concepts.