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Oscillatory motion is defined as the to and fro motion of an object from its mean position. The ideal condition is that the object can be in oscillatory motion forever in the absence of friction but in the real world, this is not possible and the object has to settle into equilibrium.
The description of a periodic motion, in general, and oscillatory motion, in particular, requires some fundamental concepts, like period, frequency, displacement, amplitude and phase. These concepts are developed in the next section. 13.2 PERIODIC AND OSCILLATORY MOTIONS. Fig. 13.1 shows some periodic motions.
15.1 Simple Harmonic Motion. Periodic motion is a repeating oscillation. The time for one oscillation is the period T and the number of oscillations per unit time is the frequency f. These quantities are related by \(f = \frac{1}{T}\).
12 Μαρ 2024 · Table of contents. Figure 5.1.1 5.1. 1: There are at least four types of waves in this picture—only the water waves are evident. There are also sound waves, light waves, and waves on the guitar strings. (credit: John Norton)
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.
A sine wave is a perfect example of oscillation. Here, the wave moves between two points about a central value. The height or the maximum distance that the oscillation takes place is called the amplitude, and the time taken to complete one complete cycle is called the time period of the oscillation.
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