AS Level Physics 9702 | Deformation of Solids (Lecture 1) | Hooke’s Law & Force–Extension Graphs скачать в хорошем качестве

AS Level Physics 9702 | Deformation of Solids (Lecture 1) | Hooke’s Law & Force–Extension Graphs

#PhysicsLecture #PhysicsUnits #PhysicsMadeEasy #SirMAC #physics2025 #ALevelsPhysics #Physics9702 In order to get the full course, please visit https://sirmahadamer.com/courses Whatsapp : https://wa.me/message/CKEDMPETUF4KA1 Instagram:   / mahad__amer   In this lecture, Sir Mahad Amer begins the important chapter Deformation of Solids for AS Level Physics (CIE 9702) with a clear, exam-focused explanation of how forces cause changes in the shape and size of materials. Students are introduced to the fundamental concept of deformation, including stretching, compression, bending, and shearing, along with the roles of tensile and compressive forces in everyday physical situations. The lecture develops the concept of extension and compression, explaining how the change in length of an object depends on the applied force. The relationship between force and extension is then explored through Hooke’s Law, showing that force is directly proportional to extension up to the limit of proportionality. The importance of the spring constant (k) is discussed as a measure of stiffness, along with how different springs respond differently to the same applied force. Graphical analysis plays a major role in exam questions, so the lecture explains how to interpret force–extension graphs, determine the gradient to find the spring constant, and compare stiffness between different materials or springs. These foundational ideas prepare students for deeper concepts such as elastic limits, stress–strain relationships, and the mechanical behavior of solids. 📌 Topics Covered • Deformation of solids: compression, tension, bending, and shearing • Extension and compression (change in length) • Hooke’s Law and limit of proportionality • Spring constant (k) and stiffness of materials • Force–extension and extension–force graphs • Comparing stiffness using graph gradients 🎯 Exam Focus • Applying ( F = kx ) correctly in numerical problems • Identifying the limit of proportionality from graphs • Calculating spring constant from graph data • Determining stiffness from force–extension comparisons • Understanding extension signs in tension and compression