Scalars and vectors

what is scalars

                  Physical quantities like as length, area, volume and mass can be completely
described by a single real number. therefore,  these quantities are describable by giving
only a magnitude, they are called scalars.then we can says
                          "Physical quantities which require only magnitude are called scalars".
Examples: length, area, volume, mass, density, pressure,work,power, etc. 

what is vectors

               Physical quantities like as displacement, velocity, force and acceleration require both a magnitude and a direction to completely describe them.  Such quantities are called vectors.then we can says
                           "Physical quantities which require both magnitude and direction for their complete

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what is physics definition

The branch of science which deals with the study  of matter and energy and the relationship between them is called physics.

we can also called about what is physics  The study of physics involves investigation of such things as the laws of motion,the structure of space and time,the nature and type of forces that hold different materials
together, the interaction between different particles, the interaction of electromagnetic radiation with matter and so on.

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