Question

1. What is rectilinear motion?
2. What is circular motion?
3. What is periodic motion?
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Answer 1

1) RECTILINEAR MOTION

Rectilinear motion is defined as a linear motion in which the direction of the velocity remains constant and the path is a straight line.

For example - A car running on a straight road.

2) CIRCULAR MOTION

Circular motion is defined as the movement of an object along the circumference of a circle or rotation along a circular path.

It can be uniform, with the constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation.

3) PERIODIC MOTION

Periodic motion is defined as the motion which repeats itself in equal intervals of time.

For example - The rotation of the earth on its axis.