## What is meant by SHM?

Simple harmonic motion is defined as a periodic motion of a point along a straight line, such that its acceleration is always towards a fixed point in that line and is proportional to its distance from that point.

## What is oscillatory motion give examples?

Oscillatory motion is defined as the to and fro motion of the body about its fixed position. Oscillatory motion is a type of periodic motion. Examples of oscillatory motion are vibrating strings, swinging of the swing etc.

## What are the types of oscillatory motion?

There are two types of oscillatory motions, namely, Linear Oscillatory Motion and Circular Oscillatory Motion. In linear motion, the object moves left and right or up and down.

## Why circular motion is not SHM?

Circular motion is not a form of simple harmonic motion. Circular motion occurs when a particle in motion is subjected to a force acting perpendicular to the direction of motion at all times. SHM occurs when a particle is subjected to a force that is anti-parallel to the particle’s motion.

## Can a motion be oscillatory but not SHM?

Yes, when a ball is dropped from a height on a perfectly elastic plane surface, the motino of ball is oscillatory but not simple harmonic as restoring force F=mg= constant and not F∝-y.

## What is the difference between periodic motion and circular motion?

In general, an object moving in periodic motion must move under the influence of a varying force which is directed to some equilibrium position or to some neutral position. In uniform circular motion this position is the center of the circle.

## Are all oscillatory motion periodic?

Answer: All oscillatory motions are periodic because each oscillations gets completed in a definite interval of time. Eg: On being pulled and then released, a load attached to a spring executes oscillatory motion. On the other hand, all periodic motions may not be oscillatory.

## Are all periodic motions simple harmonic?

Simple harmonic motions are an object moving back and forth with a restoring force that is proportional to its displacement from a mean position, in either direction. Periodic motion is motion repeated in equal intervals of time. Therefore, not all periodic motion’s meet the definition of simple harmonic motion.

## Is heartbeat oscillatory motion?

We know that an oscillatory motion is a type of periodic motion. Any motion that repeats after a regular interval of time is defined as a periodic motion. So, we can see that the motion of the planets or the comets around the sun or the heartbeat of a person are not an oscillation.

## What is the difference between oscillation and vibration?

The main difference between Vibration and Oscillation is that the Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point; precisely used to describe mechanical oscillation and Oscillation is a repetitive variation of some measure about a central value.

## What are the types of oscillation?

Examples

- Double pendulum.
- Foucault pendulum.
- Helmholtz resonator.
- Oscillations in the Sun (helioseismology), stars (asteroseismology) and Neutron-star oscillations.
- Quantum harmonic oscillator.
- Playground swing.
- String instruments.
- Torsional vibration.

## Is oscillation a vibration?

The main difference between oscillation, vibration is that oscillation refers to any repeated variation about a central value, while the term vibration refers specifically to mechanical oscillations.

## What is one oscillation of a pendulum?

The pendulum is said to have completed one oscillation when its bob,starting from its mean position O, moves to A, to B and back to O. The pendulum also completes one oscillation when its bob moves from one extreme position A to the other extreme position B and comes back to A.

## What does period of pendulum depend on?

The period of a pendulum does not depend on the mass of the ball, but only on the length of the string. Two pendula with different masses but the same length will have the same period. Two pendula with different lengths will different periods; the pendulum with the longer string will have the longer period.