The Final Bow of Year 9 – STEM Project Inspired by Hooke’s Law

This term, our Year 9 scientists took on a hands-on physics challenge—exploring Hooke’s Law and applying their learning by designing and building their own working dynamometers (spring scales)!

Students began by investigating how the extension of a spring relates to the force applied. Using various masses, they calculated weights using the formula W = m × g, measured spring extension, and plotted force vs. extension on graph paper. From this, they determined the spring constant (k) by calculating the gradient of their best-fit line.

With their data in hand, the real engineering began! Each group constructed a personalized dynamometer, using simple materials like springs, cardboard, and containers. They marked calibrated scales on their devices based on their own experimental results—demonstrating an excellent understanding of how scientific concepts can be translated into real-world tools.

Once complete, students tested and adjusted their spring scales for accuracy and even added creative touches to decorate and name their devices. The final products were impressive, and each dynamometer was a unique testament to the blend of science, math, and design thinking.

A big thank you to all Year 9 students for your dedication, teamwork, and enthusiasm throughout this project and a special thank you to Ms. Merna Yousef, whose guidance and support during the construction phase made this project possible.