Question

What is oscillation?

Answer 1

Hint: Oscillation is mostly seen in free objects hanging or just attached from on end. The common words like swing, vibrate, wave, undulate, etc. also represent the oscillations of a body. We have done several experiments of hanging objects to examine the nature of oscillation.

Complete step-by-step solution:
An oscillation means the periodic motion that repeats a regular cycle. For example, if we take a simple pendulum, it swings with a regular time interval with back and forth motion, this represents oscillation of a simple pendulum.
Again, if we think, as a sine wave—a wave with perpetual motion as in the up-and-down motion of a spring with a weight. An oscillating movement occurs around an equilibrium point or mean value as we see in simple harmonic motion which is bounded by two extreme points and a mean position in between these two extrema.
 If we go to represent the wave function by a simple curve then regular variation in magnitude or position about a central point, also represents the oscillation in the quantity.
Swinging of a fan as well as its rotation is also called the oscillation.

Note: Most examples of oscillation are, the high and low tides occurring in the sea, the back and forth movement of a simple pendulum in a clock, another example of oscillation is the spring which expands and contracts. The musical instruments which have strings attached also oscillate to produce sound. The vibration of particles to transfer the sound and pressure in forward direction.