1. Physics Lecture Resources
Prof. Mineesh Gulati
Head-Physics Wing
Happy Model Hr. Sec. School, Udhampur, J&K
Website: happyphysics.com
happyphysics.com

2. Ch 13 Periodic Motion
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3. 13.1 Describing Oscillation
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4. relationships between frequency and period
angular frequency
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5. 13.2 Simple Harmonic Motion
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6. simple harmonic motion
restoring force exerted by an ideal spring
simple harmonic motion
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10. Simple harmonic motion
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11. displacement in SHM
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15. 13.3 Energy in Simple Harmonic Motion
total mechanical energy in SHM
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17. 13.4 Applications of Simple Harmonic Motion
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19. Angular SHM
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20. Vibration of molecules
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21. Example 13.7
Two argon atoms can form a weakly bound molecule, Ar2, held together by a van der Waals interaction with U0=1.68*10-21J and R0=3.82*10-10m. Find the frequency for small oscillations of one of the atoms about its equilibrium position.
Ans:
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22. 13.5 The Simple Pendulum
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23. Simple pendulum, small amplitude
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25. Example 13.8
Find the period and frequency of a simple pendulum 1.0m long at a location where g=9.8m/s2
Ans:
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26. 13.6 The Physical Pendulum (real Pendulum)
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27. 13.7 Damped Oscillations
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28. Oscillator with little damping
For critical damping
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29. 13.8 Forced Oscillations and Resonance
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32. The circle of reference construction uses a rotating vector called a phasor, having a length equal to the amplitude of the motion. Its projection on the horizontal axis represents the actual motion of a body in simple harmonic motion
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