Chapter 17 of 32
Revision Notes
Simple Harmonic Motion — Revision Notes
NEET-UG · Physics
Free Simple Harmonic Motion revision notes for NEET-UG Physics 2026 — key concepts, formulas, and definitions for quick revision.
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Key concepts, formulas, and definitions from Simple Harmonic Motion for NEET-UG Physics preparation.
Key Topics to Revise
1
Fundamentals of Simple Harmonic Motion
- SHM is oscillatory motion where restoring force F = -kx (proportional to displacement)
- All SHM is periodic, but not all periodic motion is SHM
- Displacement equation: x = A sin(ωt + φ) or x = A cos(ωt + φ)
2
Velocity and Acceleration in SHM
- Velocity v = dx/dt = Aω cos(ωt + φ) = ±ω√(A² - x²)
- Maximum velocity occurs at mean position: vₘₐₓ = Aω
- Velocity is zero at extreme positions
3
Energy in Simple Harmonic Motion
- Total mechanical energy E = ½kA² = ½mω²A² (constant)
- Potential energy U = ½kx² = ½mω²x² (varies with position)
- Kinetic energy K = ½mv² = ½mω²(A² - x²) (varies with position)
4
Simple Pendulum
- Ideal simple pendulum: point mass suspended by massless, inextensible string
- For small angles (θ < 10°): T = 2π√(l/g)
- Time period independent of mass and amplitude (for small oscillations)
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Key Concepts
SHM occurs when a particle movesDisplacementTotal energy E = ½mω²a² remainsFor small angular displacementsTime period T = 2π√(m/k) where
Frequently Asked Questions
What topics are covered in Simple Harmonic Motion for NEET-UG?
Simple Harmonic Motion is an important chapter in NEET-UG Physics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Fundamentals of Simple Harmonic Motion, Velocity and Acceleration in SHM, Energy in Simple Harmonic Motion, Simple Pendulum.
How important is Simple Harmonic Motion for NEET-UG?
Simple Harmonic Motion is a frequently tested chapter in NEET-UG Physics. Questions from this chapter appear regularly in previous year papers. There are 66 practice questions available for this chapter.
How to prepare Simple Harmonic Motion for NEET-UG?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
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