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# Links for the Tenth Chapter

A tuning fork exhibits periodic motion. This slow-motion video shows that.

This video explains Hooke’s Law and shows how it can be seen on a graph.

This video explains how to use Hooke’s Law in a problem.

This video explains how to use Hooke’s Law in two separate problems.

This animation shows the definition of amplitude and also that a mass/spring system is a one-dimensional version of uniform circular motion.

This video explains how to calculate the period of a mass/spring system.

This animation shows you the acceleration, speed, kinetic energy, and potential energy (they call it “elastic energy”) in a mass/spring system.

This video shows you how to use energy arguments to solve a mass/spring system problem.

This animation shows you the details of a simple pendulum’s motion.

The angle in a pendulum

This document shows you why the force causing the acceleration in a pendulum is mgsin(theta).

This video shows you how to convert between degrees and radians.

This video shows you a cool effect with multiple pendulum’s each with a different length (and therefore period).

This video shows you how to solve for a pendulum’s period. You only need to worry about part a.

This video shows you how to solve a more complicated problem involving a pendulum’s period.

This video shows you the inner workings of a pendulum clock.

Extra Practice Problems for Chapter 10

The solutions for these problems can be found here.