Question

Define simple harmonic motion and its characteristics

Answer 1

In mechanics and physics, simple harmonic motion is a special type of periodic motion or oscillation motion where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement.



These are Basic Conditions and characteristics for a body to exhibit SHM

A restoring force must act on the body.

Body must have acceleration in a direction opposite to the displacement and the acceleration must be directly proportional to displacement.

The system must have inertia (mass).

SHM is a type of oscillatory motion.

It is a particular case of preodic motion.

Answer 2

Explanation:

Definition

(SHM) is defined Linear simple harmonic as the linear periodic motion motion ofa body, in which the force (or acceleration) is always directed towards the mean position and its magnitude is proportional to the displacement from the mean position.

OR

A particle is said to execute linear SHM if the particle undergoes oscillations about a point of stable equilibrium, subject to a linear restoring force always directed towards that point and whose magnitude is proportional to the magnitude of the displacement of the particle from that point.

Examples : The vibrations of the tines (prongs) of a tuning fork, the oscillations of the needle of a

sewing machine.