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# Chapter 14 - PowerPoint PPT Presentation

Chapter 14. Periodic Motion. Hooke’s Law. Potential Energy in a Spring. See also section 7.3. Simple Harmonic Oscillator. Notations. This is the simple harmonic oscillation equation. Very very important!. You want to write ALL oscillation equations in this form. Simple pendulum.

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## PowerPoint Slideshow about ' Chapter 14' - amie

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### Chapter 14

Periodic Motion

This is the simple harmonic oscillation equation.

Very very important!

You want to write ALL oscillation equations in this form.

pendulum

Tuning

fork

Skyscraper

(Inverted Pendulum)

Other Examples

Equations

You want to write ALL oscillation equations in this form.

Given moment of inertia I and CM at l,

find the angular frequency.

A lead ball is attached to a string 3m long. Find the natural period of the pendulum.

Oscillation

Try the solution:

Under-damped

Over-damped

Critically damped

Under-damped:

Over-damped:

Critically damped:

Over-damped

Critically damped

Critically damped

Over-damped

over damped

critically damped

system slows down

fastest when

critically damped

Too much damping

Is counter-productive!

Pushing a swing

Amplitude A(ωd)

Driven / Forced Oscillations