Unit Conversion: Know how to convert units in Maths and Physics by using appropriate formulas. Check table of conversion of units including different units of length, mass, temperature, etc.

Units of measurement let us describe and compare length, weight, area, volume, density and other values. Units can be imperial or metric and they can be converted using conversion factors.

Key point Density is the mass per unit volume of a material - ie density is the mass of 1 cm 3 or 1 m 3 of a material.

Volume is a measure of the amount of space an object takes up. It is always in three dimensions. To find the volume of an objects like a cube or a box, measure the length × width × height. If measured ...