16 April 2012

CBSE PHYSICS: Fore Fiction and Pressure for VIII Physics-Notes a...

FORCE AND PRESSURE
A force is a push or pulls acting on an object which changes or tends to change the state of the object.
In the international system of units (SI System), the unit of force is Newton (N) that is named after Sir Isaac Newton.
There are also other units like dyne, kilogram weight and pound.
Action of force and its effects: A force 

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