Physics, asked by afnan1141, 1 year ago

what is scalar and vector quantity

Answers

Answered by susmitapal496
31
heeyee mate here is ur answer
scalar are
those which has only magnitude..
vector are those which has magnitude and as well as direction..
e.g speed is a scalar quantity..
but displacement is a vector quantity..
hope this will help you
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Answered by Riya3052
24
HEY MATE !

HERE IS YOUR ANSWER .

>>>>》SCALAR QUANTITY
A scalar quantity is a one dimensional measurement of a quantity, like temperature, or mass. Any physical quantity that does not include direction is known as scalar quantity.
Some examples of scalar quantities include speed, volume, mass, temperature, power, energy, and time. 

SIMPLE DEFINITION >>>>>》

A scalar is a quantity that is fully described by a magnitude only. It is described by just a single number. 







>>>>》 VECTOR QUANTITY
A vector has more than one number associated with it. Vector quantity is one, that has both magnitude and direction.Some examples of vector quantities include force, velocity, acceleration, displacement, and momentum. 

SIMPLE DEFINITION >>>》 vector is a quantity that has both a magnitude and a direction. Vector quantities are important in the study of motion. 







Key Differences Between Scalar and Vector Quantity

The following points are noteworthy, so far as the difference between scalar and vector quantity is concerned:

.The scalar quantity is described as the quantity that has only one characteristic, i.e. magnitude. The vector quantity is a physical quantity which needs both magnitude and direction to define it.

Scalar quantities explain one-dimensional quantities. On the other hand, multi-dimensional quantities are explained by vector quantity.

Scalar quantity changes only when there is a change in their magnitude. As against this, vector quantity changes with the change in their magnitude, direction or both.

Ordinary rules of algebra are followed by scalar quantities to perform operations like addition, subtraction and multiplication, while for the performance of operations, vector quantities follow vector algebra rules.

When comparing two scalar quantities, you have to consider only the magnitude, whereas when the comparison of two vector quantities is made, both magnitude and direction are to be taken into account. In this way, vector quantities are a bit more difficult to deal, as compared to scalar quantity.

Last but not the least, scalar quantity can divide another scalar but this cannot be done in the case of a vector quantity.



CONCLUSION
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In short, scalar quantity gives you an idea about how much of an object there is, but vector quantity gives you an indication of how much of an object there is and that also in which direction. So, the main difference between these two quantities is associated with the direction, i.e. scalars do not have direction but vectors do.



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