Chapter 25 of 28
Revision Notes
Oscillations — Revision Notes
IISER Aptitude Test · Physics
Free Oscillations revision notes for IISER Aptitude Test Physics 2026 — key concepts, formulas, and definitions for quick revision.
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Key concepts, formulas, and definitions from Oscillations for IISER Aptitude Test Physics preparation.
Key Topics to Revise
1
13.1-13.2 Introduction and Periodic Motion
- Periodic motion repeats identically after fixed intervals (period T)
- Oscillatory motion is periodic motion confined between limits about a mean position
- Time period T is the smallest interval after which motion repeats
2
13.3 Simple Harmonic Motion (SHM)
- SHM is motion with acceleration proportional to displacement and directed toward equilibrium
- Standard equation: a = -ω²x (acceleration ∝ -displacement)
- Displacement equation: x(t) = A cos(ωt + φ)
3
13.4 SHM and Uniform Circular Motion
- SHM is the projection of uniform circular motion on any diameter
- Particle moving in circle of radius A with angular speed ω
- x-projection: x = A cos(ωt), y-projection: y = A sin(ωt)
4
13.5 Velocity and Acceleration in SHM
- Velocity: v(t) = -ωA sin(ωt + φ), maximum at mean position
- Acceleration: a(t) = -ω²A cos(ωt + φ) = -ω²x(t)
- Maximum velocity: vₘₐₓ = ωA (at x = 0)
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Key Concepts
Periodic motion repeats after fixed intervalsMotion with acceleration proportional to displacementSHM is the projection of uniformFor x = A cos(ωt +Restoring force F =
Frequently Asked Questions
What topics are covered in Oscillations for IISER Aptitude Test?
Oscillations is an important chapter in IISER Aptitude Test Physics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 13.1-13.2 Introduction and Periodic Motion, 13.3 Simple Harmonic Motion (SHM), 13.4 SHM and Uniform Circular Motion, 13.5 Velocity and Acceleration in SHM.
How important is Oscillations for IISER Aptitude Test?
Oscillations is a frequently tested chapter in IISER Aptitude Test Physics. Questions from this chapter appear regularly in previous year papers. There are 235 practice questions available for this chapter.
How to prepare Oscillations for IISER Aptitude Test?
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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