Chapter 5 of 16
Revision Notes
Oscillations — Revision Notes
Maharashtra Board · Class 12 · Physics
Oscillations revision notes for Maharashtra Board Class 12 Physics: 4 topics in quick points. Part of the Maharashtra Board Class 12 Physics syllabus.
44 questions22 flashcards11 formulas & key relations5 concepts
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Key Topics to Revise
1
Periodic and Oscillatory Motion
- Periodic motion repeats itself after a definite time interval called period (T)
- Oscillatory motion is a special case of periodic motion where the body moves to and fro about a mean position
- All oscillatory motions are periodic, but not all periodic motions are oscillatory
2
Simple Harmonic Motion (SHM)
- SHM is the simplest form of oscillatory motion where acceleration is proportional to displacement and directed towards mean position
- Restoring force: F = -kx (always directed towards equilibrium)
- Acceleration: a = -ω²x (proportional to displacement, opposite in direction)
3
Energy in Simple Harmonic Motion
- Total energy in SHM remains constant (energy conservation)
- Kinetic energy: KE = ½mv² = ½mω²(A² - x²)
- Potential energy: PE = ½kx² = ½mω²x²
4
Simple Pendulum
- Simple pendulum performs SHM for small angular displacements (θ < 10°)
- Restoring force: F = -mg sin θ ≈ -mgθ (for small θ)
- Time period: T = 2π√(L/g) - independent of mass and amplitude
Get complete notes with diagrams and examples
Full NotesKey Concepts
Linear periodic motion where accelerationd²x/dt² + ω²x = 0Total energy E = KE +Heavy bob suspended by massless stringRotational oscillations where restoring torque τ
Frequently Asked Questions
What are the important topics in Oscillations for Maharashtra Board Class 12 Physics?
Key topics in Oscillations include Periodic and Oscillatory Motion, Simple Harmonic Motion (SHM), Energy in Simple Harmonic Motion, Simple Pendulum. Study these first, then practise questions on each for the Maharashtra Board Class 12 board exam.
How should I revise Oscillations for the Maharashtra Board Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Oscillations. Revise definitions regularly and use flashcards for quick recall 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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