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An oscillation is a back and forth motion of an object between two points of deformation. An oscillation may create a wave, which is a disturbance that propagates from where it was created. The simplest type of oscillations and waves are related to systems that can be described by Hooke’s law.
This page includes 10 lecture notes.
The motion of a simple harmonic oscillator can be observed by using a position sensor attached to a data logger. Using the data logger you can form a graph of displacement against time as shown below: The exact displacement-time graph for a simple harmonic oscillator is described using the following equation:
We begin by studying the type of force that underlies the simplest oscillations and waves. We will then expand our exploration of oscillatory motion and waves to include concepts such as simple harmonic motion, uniform circular motion, and damped harmonic motion.
An object experiencing simple harmonic motion is one which experiences a restoring force, which acts towards the centre of equilibrium. This force is directly proportional to the object’s distance from the equilibrium position and can be described using the equation below: F = − k x.
A student makes the following statements about waves. I In a transverse wave, the particles vibrate parallel to the direction of travel of the wave. II Light waves and water waves are both transverse waves.
Simple harmonic motion (SHM) is oscillatory motion for a system where the restoring force is proportional to the displacement and acts in the direction opposite to the displacement. Maximum displacement is the amplitude A.
