Physics 9th: Motion | Introduction


The most important characteristic of all moving bodies is that they change their position with time.

A body is said to be in motion, when it changes its position continuously with respect to a stationary object taken as the standard or reference point.

Note: So motion is not absolute, it is relative

For example a car is in front of the hut at A. But after 10 seconds, it has changed its position to B. Here, the hut is a reference point and the car is changing its position with respect to this stationary object. Hence the car is said to be in motion. In order to study motion in depth we must know the meaning of the following terms.


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>


This site uses Akismet to reduce spam. Learn how your comment data is processed.