Question

What is the difference between a scalar and a vector quantity? ​

Answer 1

A scalar quantity has only magnitude, but no direction. Vector quantity has both magnitude and direction. Every scalar quantity is one-dimensional. Vector quantity can be one, two or three-dimensional.

Answer 2

Scalar quantity-

The quantities which contains magnitude only. It doesn't contain direction is reffered to as scalar quantity.

Some examples of scalar quantity are :

• Mass
• Length
• Distance
• speed
• Power

Vector quantity-

The quantities which contains magnitude as well as direction is referred to as vector quantity.

Some examples of vector quantity are :

• Velocity
• Displacement
• Acceleration
• Force
• Momentum

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