- Motion is a change of position; it can be described in terms of the distance moved or the displacement.
- The motion of an object could be uniform or non-uniform depending on whether its velocity is constant or changing.
- The speed of an object is the distance covered per unit time, and velocity is the displacement per unit time.
- The acceleration of an object is the change in velocity per unit time.
- Uniform and non-uniform motions of objects can be shown through graphs.
- The three equations of motion are: v = u + at, s = ut + (1/2)at2 , 2as = v2 - u2
Class 9th Physics Chapter 1 (Motion) Notes!
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