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

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Ch 13 Periodic Motion © 2005 Pearson Education

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13.1 Describing Oscillation © 2005 Pearson Education

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relationships between frequency and period angular frequency © 2005 Pearson Education

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13.2 Simple Harmonic Motion © 2005 Pearson Education

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

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Simple harmonic motion © 2005 Pearson Education

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displacement in SHM © 2005 Pearson Education

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

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13.4 Applications of Simple Harmonic Motion © 2005 Pearson Education

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Angular SHM

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Vibration of molecules © 2005 Pearson Education

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Example 13.7 Two argon atoms can form a weakly bound molecule, Ar 2, held together by a van der Waals interaction with U 0 =1.68*10 - 21 J and R 0 =3.82*10 -10 m. Find the frequency for small oscillations of one of the atoms about its equilibrium position. Two argon atoms can form a weakly bound molecule, Ar 2, held together by a van der Waals interaction with U 0 =1.68*10 - 21 J and R 0 =3.82*10 -10 m. Find the frequency for small oscillations of one of the atoms about its equilibrium position. Ans: Ans: © 2005 Pearson Education

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13.5 The Simple Pendulum © 2005 Pearson Education

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Simple pendulum, small amplitude © 2005 Pearson Education

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Example 13.8 Find the period and frequency of a simple pendulum 1.0m long at a location where g=9.8m/s 2 Find the period and frequency of a simple pendulum 1.0m long at a location where g=9.8m/s 2 Ans: Ans: © 2005 Pearson Education

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

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13.7 Damped Oscillations © 2005 Pearson Education

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Oscillator with little damping For critical damping © 2005 Pearson Education

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13.8 Forced Oscillations and Resonance © 2005 Pearson Education

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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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© 2005 Pearson Education

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END Visit: happyphysics.com For Physics Resources

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