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# What are the differences Between Scalars and Vectors

## Differences Between Scalars and Vectors

Scalar

It is defined as:

“Scalar quantity are those physical quantity which require magnitude, express with suitable unit only is called scalar quantity.”

Characteristics Of Scalar Quantity

1. Scalar quantity can be added, subtracted, multiplied, divided according to the ordinary algebraic rule.
2. Two scalars are equal if they have same unit.

Representation

It can be represented by the numbers with decimals, (positive negative).

Example

Mass, Distance, Temperature, volume, speed etc.

Vector

It is defined as:

Vector quantity are those physical quantity which require magnitude, express with suitable unit as well as proper direction is called vector quantity.

Characteristics of Vector Quantity

1. Vector quantity canâ€™t be added, subtracted, multiplied, divided according to the ordinary algebraic rule.
2. It can be added, subtracted, multiplied, divided according to the some special rules, like head and tail rule, Graphical method etc.
3. Vector always treats as positive.

Representation

It can be represented by an arrow with headline. The length of an arrow represents its magnitude and the headline represents the direction of the vector.

Example

Weight, Displacement, Velocity, Acceleration, Torque, Momentum etc.

Let’s say you’ve read a book and come across a word you don’t know. What will you do? Surely you will try to find out its meaning. Refer to dictionaries or use search engines on the Internet. Naturally, after the search, this word will be deposited in your memory. And soon you will start using it in your life. Can you imagine how many new words, knowledge in general you will receive by reading each subsequent book?