Lectures (Video)
- 1. Measurements And Dimensional Analysis
- 2. 1D Kinematics
- 3. Vectors
- 4. 3D Kinematics
- 5. Circular Motion
- 6. Newton's Laws
- 7. Weight - Perceived Gravity
- 8. Friction
- 9. Review
- 10. Hooke's Law
- 11. Work - Kinetic Energy - Potential Energy
- 12. Non-Conservative Forces
- 13. Potential Energy
- 14. Sources of energy
- 15. Momentum
- 16. Elastic and Inelastic Collisions
- 17. Impulse
- 18. Review II
- 19. Rotating Rigid Bodies
- 20. Angular Momentum
- 21. Torques - Oscillating Bodies
- 22. Kepler's Laws
- 23. Doppler Effect
- 24. Rolling Motion and Gyroscopes
- 25. Static Equilibrium
- 26. Elasticity and Young's Modulus
- 27. Introduction to Fluid Mechanics
- 28. Hydrostatics and Bernoulli's Equation
- 29. Review III
- 30. Simple Harmonic Oscillations
- 31. Forced Oscillations
- 32. Heat - Thermal Expansion
- 33. Kinetic Gas Theory
- 34. Breakdown of Classical Mechanics
- 35. High-energy Astrophysics
Classical Mechanics - Lecture 31
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Lecture 31 - Forced Oscillations
Systems consisting of pendulums and springs can freely oscillate at their natural frequencies (also called normal modes). When we expose a system to a wide spectrum of frequencies, the response will be very large at the normal mode frequencies (resonances) of that system. Examples include musical instruments (standing waves on violin strings and pressure waves in wind instruments), and torsional standing waves on a bridge driven by strong winds.
Prof. Walter Lewin
8.01 Physics I: Classical Mechanics, Fall 1999 (Massachusetts Institute of Technology: MIT OpenCourseWare) http://ocw.mit.edu Date accessed: 2008-12-12 License: Creative Commons BY-NC-SA |
