Centre of Mass & Gravity || 9th Physics New Book Smart Syllabus || Chapter 04 || Lecture 09 || скачать в хорошем качестве

Centre of Mass & Gravity || 9th Physics New Book Smart Syllabus || Chapter 04 || Lecture 09 ||

Welcome to Photon Academy! In today’s lecture, we will cover a very important topic from the Punjab Board Physics Class 9 NEW Textbook: ⭐ Centre of Gravity & Centre of Mass ⭐ This topic is highly important for board exams, concept-building, and numerical understanding. Watch the video till the end and download the provided notes for revision. 🎯 Simple explanation 🎯 Book diagrams and examples from NEW syllabus 🎯 Exam-focused questions & answers 🎯 Easy tricks to remember the concept ⏱️ Time Stamps (15-Minute Lecture) 00:00 – Introduction 00:40 – What is Centre of Gravity? 02:35 – Gravitational forces on particles (Book Fig. 4.14 – NEW Book) 04:10 – Resultant gravitational force and definition 05:00 – Centre of gravity of regular shapes (Table 4.1 – NEW Book) 06:50 – Finding CG of irregular lamina (Plumbline Method – NEW Book) 08:45 – CG outside the body (Cup and bowl example) 09:55 – What is Centre of Mass? 11:10 – Motion of centre of mass (Wrench example – Fig. 4.16 NEW Book) 12:45 – When CG and CM coincide 13:30 – Summary of key differences 14:30 – Important Questions & Answers (Exam Prep) 15:00 – Closing message + Notes download link 📚 What Students Will Learn Centre of Gravity Weight distribution and gravitational forces CG of regular shapes (as given in NEW book) Method to find CG of irregular lamina CG outside the body Centre of Mass Motion of CM in rotating bodies Difference between CG and CM Useful for: ✔ Class 9 Physics (Punjab Board NEW Book) ✔ Matric Exam Preparation ✔ Concept Building ✔ Entry Test Basics ✔ Self-study & Classroom Revision 💬 Connect With Photon Academy Subscribe for more conceptual physics lectures! --- 🔖 Hashtags #Class9Physics #PunjabBoardNewBook #CentreOfGravity #CentreOfMass #PhysicsLecture #PunjabTextbook #MatricPhysics #PhotonAcademy #CGandCM #PhysicsMadeEasy #StudyWithMe #BoardExamPreparation #NewSyllabus2025 #ScienceClass