Acceleration (a) –

The rate of change of velocity as a function of time is Acceleration. It has both magnitude and direction, hence a vector quantity. Simply, Acceleration is the rate of change of velocity of an object. Therefore, as described by Newton’s Second Law, an object’s acceleration is the net result of any and all forces acting on it.

Formula for Acceleration = velocity / time;

a = v/t

Unit for Acceleration is metre second^-2

Symbol for Acceleration is ms^-2

Velocity (r or v) –

Velocity is defined as a vector measurement of the rate and direction of motion or, in other terms, the rate and direction of the change in the position of an object.Velocity is the speed of an object plus its direction. Speed is called a scalar quantity and velocity is a vector quantity. Vector quantities mean that it can be described by both magnitude and direction.

Formula for Velocity = Displacement / Time;

v = d/t

Unit for Velocity is metre second^-1

Symbol for Velocity is ms^-1

Density of a material is defined as its mass per unit volume.The density of any solid, liquid or gas can be found by dividing its mass in kilograms by its volume in cubic metres. It is denoted as “ƿ” the lower case Greek letter rho). The Latin letter D can also be used to denote Density.

Formula for Density = mass/volume;

ƿ = M / V.

Unit for Density is kilogram metre^-3

Symbol for Density is kg m^-3

Volume of the cube (V) refers to the number of cubic units that will exactly fill a cube. Volume of an object is the amount of space it occupies.

Formula for Volume of the cube = Side × Side×Side;

V = L × L × L

Unit for Volume of the cube metre³ or cubic metre

Symbol for Volume of the cube m³

Area of Square (A)
Area of Square refers to the number of square units required to fill the square. Area is a derived physical quantity. A square metre is the area of a square whose each sides are 1 metre.

Formula of Area of Square = Side × Side

A = L× L

Unit of Area of Square is Metre² or square metre

Symbol of Area of Square is m²