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Simple Harmonic Motion

Telangana Board · Class 12 · Physics

Quick revision notes for Simple Harmonic Motion — Telangana Board Class 12 Physics. Key concepts, formulas, and definitions for last-minute revision.

45 questions22 flashcards5 concepts

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Key Topics to Revise

1

1. Basic Concepts and Definitions

  • Periodic motion repeats itself at equal intervals of time (T = time period)
  • Oscillatory motion is to-and-fro motion about a mean position
  • SHM occurs when acceleration ∝ -displacement (a = -ω²x)
2

2. Mathematical Description of SHM

  • Displacement equation: x = A sin(ωt + φ) or x = A cos(ωt + φ)
  • Velocity: v = Aω cos(ωt + φ) [90° ahead of displacement]
  • Acceleration: a = -Aω² sin(ωt + φ) [180° ahead of displacement]
3

3. Spring-Mass System

  • Horizontal spring-mass: T = 2π√(m/k)
  • Vertical spring-mass: same formula, gravity doesn't affect period
  • Force constant k = F/x (force per unit extension)
4

4. Simple Pendulum

  • Time period T = 2π√(l/g) (for small angles)
  • Independent of mass and amplitude (for small oscillations)
  • Restoring force = mg sin θ ≈ mgθ (for small θ)

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Full Notes

Key Concepts

A particle executes SHM when itsDisplacementSpringKinetic EnergySHM can be represented as

Frequently Asked Questions

What are the important topics in Simple Harmonic Motion for Telangana Board Class 12 Physics?
Simple Harmonic Motion covers several key topics that are frequently asked in Telangana Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Simple Harmonic Motion — Telangana Board Class 12 Physics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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