Question

Scalar and vector quantity explain.​

Answer 1

hiii mate

Answer

$1. \: scalar \: quantity$

The quantities which do not need direction for their description are called scalar quantity . Only the magnitude of the quantity is needed to express them correctly.

Ex - Distance , Mass, Density , Energy, Temperature etc.

$2. \: vector \: quantity$

The quantities which need both magnitude and direction for their correct description are called vector quantities. They also obey the law of addition of vectors.

Ex - Displacement, Acceleration , Force , Momentum etc.

Hope it helps ☺️

Answer 2

$\huge\mathbf{\red{ \: \: \: \: \: \: \: \: Scalar \: quantity}}</p><p>$

Scalar quantity is defined as the physical quantity with magnitude and no direction.

Some physical quantities can be described just by their numerical value (with their respective units) without directions (they don’t have any direction). The addition of these physical quantities follows the simple rules of the algebra. Here, only their magnitudes are added.

Examples of scalar quantity:

There are plenty of scalar quantity examples, some of the common examples are:

• Mass
• Speed
• Distance
• Time
• Area
• Volume
• Density
• Temperature

$\huge\mathbf{\red{ \: \: \: \: \: \: \: \: \: Vector \: quantity }}$

A vector quantity is defined as the physical quantity that has both direction as well as magnitude.

A vector with the value of magnitude equal to one and direction is called unit vector represented by a lowercase alphabet with a “hat” circumflex. That is “û“.

Examples of Vector Quantities:

Vector quantity examples are many, some of them are given below:

• Linear momentum
• Acceleration
• Displacement
• Momentum
• Angular velocity
• Force
• Electric field
• Polarization