Centre of Gravity Apparatus

The Centre of Gravity Apparatus is a straightforward and cost-effective tool designed to demonstrate the concept of the centre of gravity in two-dimensional objects. Understanding the centre of gravity is essential in fields such as physics, engineering, and architecture, as it helps to analyse the stability and balance of various shapes and structures. This apparatus allows students and educators to visually grasp how the centre of gravity functions and is positioned within different geometric forms.

The setup consists of a clear perspex rod mounted securely on a base, featuring a suspension screw at the top. This configuration enables users to freely suspend various laminas made of clear acrylic, each shaped like a circle, triangle, square, or trapezoid. Each of these laminas is equipped with suspension holes along its edges, which serve as points for the application of forces in the demonstration. When the laminas are suspended, users can easily manipulate them to observe how their centre of gravity aligns with the vertical line drawn downward from the point of suspension.

To determine the centre of gravity of a particular lamina, users can draw lines from the point of suspension through two or more of the suspension holes. The point where these lines intersect reveals the centre of gravity for that two-dimensional shape. This hands-on approach not only fosters a deeper understanding of the concept but also encourages interaction and experimentation, making it an invaluable educational resource for demonstrating the principles of balance, stability, and geometry in a classroom setting.