SHM Full Revision 🔥 Class 12 NEB Physics | All Formulas + Important Questions [L2]

Top 20 Sure-Shot SHM Questions (NEB Exam) 📘 Conceptual (Very Important) Define SHM with example. Prove that acceleration in SHM is proportional to displacement. What is phase and phase difference? Define restoring force and force constant. Difference between periodic and oscillatory motion. 📘 Derivation-Based Derive velocity equation from displacement. Show that a=−ω^2x. Derive time period of spring-mass system. Derive expression for total energy in SHM. Prove energy conservation in SHM. 📘 Numerical (HIGH CHANCE ⚡) Find velocity at given displacement. Calculate time period of a spring system. Find maximum velocity and acceleration. Calculate total energy of oscillating particle. Find displacement at given time. 📘 Mixed / Tricky Relation between velocity and displacement. Graph-based question (x-t or v-t). Total distance covered in given time. Effect of mass and spring constant on time period. Energy distribution at different positions. 📖 Important Definitions & Terminologies 🔹 Simple Harmonic Motion (SHM): A type of periodic motion in which the restoring force is directly proportional to displacement and acts towards the mean position. 👉 Example: Spring oscillation, simple pendulum (small angle) 🔹 Periodic Motion: Motion that repeats itself at equal intervals of time. 👉 Example: Earth’s revolution, vibration of tuning fork 🔹 Oscillatory Motion: A to-and-fro motion about a fixed mean position. 👉 Example: Swing motion, mass-spring system 🔹 Mean Position (Equilibrium Position): The central position where net force is zero. 🔹 Displacement (x): Distance of the particle from the mean position at any instant. 🔹 Amplitude (A): Maximum displacement from the mean position. 👉 Example: Maximum stretch of spring 🔹 Time Period (T): Time taken to complete one full oscillation. 🔹 Frequency (f): Number of oscillations per second. 👉 Unit: Hertz (Hz) 🔹 Angular Frequency (ω): Rate of change of phase in SHM. 👉 Relation: ω = 2πf 🔹 Restoring Force: Force that brings the system back to equilibrium. 👉 In SHM: F ∝ –x 🔹 Force Constant (k): Force required to produce unit displacement. 👉 Unit: N/m 🔹 Phase: The position and direction of motion of a particle at a given instant. 🔹 Phase Difference: Difference in phase between two oscillating particles. 🔹 Total Path (Total Distance in One Oscillation): The total distance covered in one complete oscillation. 👉 Total Path = 2A 🔹 Velocity in SHM: Velocity is maximum at mean position and zero at extreme positions. 🔹 Acceleration in SHM: Acceleration is directly proportional to displacement and directed towards mean position. 🔹 Energy in SHM: Total energy remains constant and is the sum of kinetic and potential energy. 🔹 Maximum Velocity: Occurs at mean position. 🔹 Maximum Acceleration: Occurs at extreme positions. #simple #harmonic #motion #class12physics #12NEB #SHM #class12physicschapter1 #nebphysics #simpleharmonicmotion #oscillation #PhysicsDefinitions #studysmart #physicsnepal #acidophile #nebphysics Total path in SHM Oscillation physics class 12 SHM important terms NEB Physics SHM full chapter Force constant meaning Amplitude time period frequency SHM