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

Ch 13 Periodic Motion © 2005 Pearson Education

13.1 Describing Oscillation © 2005 Pearson Education

relationships between frequency and period angular frequency © 2005 Pearson Education

13.2 Simple Harmonic Motion © 2005 Pearson Education

simple harmonic motion restoring force exerted by an ideal spring simple harmonic motion © 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

Simple harmonic motion © 2005 Pearson Education

displacement in SHM © 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

13.3 Energy in Simple Harmonic Motion total mechanical energy in SHM © 2005 Pearson Education

© 2005 Pearson Education

13.4 Applications of Simple Harmonic Motion © 2005 Pearson Education

© 2005 Pearson Education

Angular SHM © 2005 Pearson Education

Vibration of molecules © 2005 Pearson Education

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: © 2005 Pearson Education

13.5 The Simple Pendulum © 2005 Pearson Education

Simple pendulum, small amplitude © 2005 Pearson Education

© 2005 Pearson Education

Example 13.8 Find the period and frequency of a simple pendulum 1.0m long at a location where g=9.8m/s2 Ans: © 2005 Pearson Education

13.6 The Physical Pendulum (real Pendulum) © 2005 Pearson Education

13.7 Damped Oscillations © 2005 Pearson Education

Oscillator with little damping For critical damping © 2005 Pearson Education

13.8 Forced Oscillations and Resonance © 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

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 © 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

© 2005 Pearson Education

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