# Difference Between Rotational Motion And Circular Motion

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Difference Between Rotational Motion And Circular Motion. In this article, you will come to know about what is circular motion, what is rotational motion, what is the main difference between rotational motion and circular motion, and a comparison between rotational motion vs circular motion.

Circular motion and rotational motion are studied in rigid-body dynamics. Both terms describe the motion of the body at a fixed point. But there is a difference between these two motions. Let us first know the main difference between circular motion and rotational motion and then discuss the difference in detail.

## What Is The Main Difference Between Rotational Motion And Circular Motion?

The main difference between rotational motion and circular motion is that the:

-Rotational motion refers to the movement in which an object rotates on its axis.

-Circular motion refers to the movement in which an object moves in a circle.

### What Is Rotational Motion?

Rotational motion is a motion at a fixed point. It refers to the movement in which an object rotates on its axis. An axis is a fixed point of rotation that is perpendicular to the plane in which the body is rotating. For example, Earth is rotating on its axis, which is a rotational motion.

### What Is Circular Motion?

The circular motion refers to the movement in which an object moves in a circle. In this type of movement, the centre of the rigid body and axis of rotation remains fixed to the rigid body travelling in a plane. It is the rotation along the circumference of a circle. For example, satellite in the space moves in the fixed direction.

### Comparison Between Rotational Motion vs Circular Motion:

-The axis of rotation and centre of mass can be changed in rotational motion.
-The axis of rotation and centre of mass cannot be changed in a circular motion.

-Rotational motion is done around the axis of the body.
-Circular motion is done around the circumference of the body.

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