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Simple Harmonic Motion Vibrations

Learn about Simple Harmonic Motion in Physics, focusing on vibrations and Hooke's Law. Explore the concept of restoring force and displacement from equilibrium position. Discover how spring force works and its relation to potential energy. Understand the conservation of total mechanical energy in spring systems.

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Simple Harmonic Motion Vibrations

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  1. Physics 150/215 Lesson 8 Vibrations • Simple Harmonic Motion • Vibrations

  2. Hookes Law F = -kx F = restoring force x = displacement from equilibrium position

  3. One Oscillation / Vibration is one complete motion from equilbrium position back to equilibrium position

  4. Force is not constant, therefore • 1. cannot use kinetic equations of motion • 2. work done by spring (elastic) force can’t just be written as • FORCE X DiSTANCE

  5. Spring force is a conservative force • Can show that Spring Potential Energy Total mechanical energy due to spring is conserved

  6. Get same type of motion by displacing ANY elastic material a small amount from its equilibrium position.

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