Physics chpt13
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This chapter discusses harmonic motion and oscillations. It defines key terms like period, frequency, amplitude, damping, and resonance. It explains that systems oscillate when they are disturbed from a stable equilibrium position due to restoring forces. The natural frequency is the frequency at which a system spontaneously oscillates. Resonance occurs when a periodically applied force excites the natural frequency of a system, causing large oscillations. Examples of resonance are given.
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Editor's Notes
- 1. The restoring force pulls the pendulum toward the center (equilibrium). 2. The pendulum overshoots the center because of its inertia. 3. The restoring force pulls back toward the center, slowing and reversing the pendulum’s direction. 4. The pendulum overshoots the center again, because of inertia. 5. The cycle repeats, creating harmonic motion.