Question

What do you mean by motion? Explain different types of motion.

Answer 1

For the motion to happen the change in the position of the particular object or the body should occur. There is a frame of reference of motion for a body, that means it may seem in motion from one frame of reference while from another frame of reference it may appear stationary.
Motion- a body is said to be in motion if the position or the orientation of the body changes with respect to the time and the surrounding.

Complete answer:
There are three types of the motion-

A.)Translational motion- Sometimes it is called linear motion. When a body moves in a straight line without any rotational motion then it is called as the translational motion. For example- motion of the airplane, motion of the rain, motion of the vehicles, motion of the water in a river, etc.

B.)Rotational motion- sometimes it is called circular motion. Rotational motion is the motion of a rigid body which takes place in such a way that all the particles of the body move in the circles about some axis, and they all must have a common angular velocity. For example- rotation and revolution of the planets and satellites, motion of the wheels of the vehicles, motion of the domestic fans, etc.

C.)Vibrational motion or the oscillating motion- when the body moves through a little displacement about its mean position then the motion of the body is called the vibrational motion. In the other words the periodic motion back-and-forth motion of the particles of an elastic body or the medium. for example- movement of the vocal cord, movement of the sound waves in the form of longitudinal waves.

Note:
Simplest form of the motion is the motion in which the velocity is constant. This type of the motion takes place when an object slides over a horizontal and low friction surface. For example- Across a hockey stick a puck is sliding. A constant velocity means an object is having the same speed in the same direction throughout the journey.