How many types of motion are there ?

Motion is a movement of an object from one point to the other with respect to a frame of reference. There are 4 types of motion.

1) Rectilinear motion

It is nothing but a movement of an object in a straight path. For example, march past of soldiers in a straight path.

2) Circular motion

It is the motion of an object in a circular path. For example, the motion of earth around the sun, the motion of a bike along a curved path, etc. 

3) Rotational motion

It is the rotation of an object around its own axis. For example, the rotation of the earth on its own axis, the rotation of a spinning top, etc.

4) Periodic motion

The to and fro motion of a body about its mean position is called periodic motion. For example, motion of a simple pendulum.