supplementary units and derived units

The units of all physical quantities can be derived from the seven basic units. These units are called derived units because they can be derived from the basic units algebraically by multiplication and division. It is f..

Quantity Formula Symbol (SI Unit) Area A=LxB m 2 Volume V=LxBXH m 3 Density D = Mass/Volume kg m - 3 Velocity V = Distance/Time m s -1 Acceleration a = Change in Velocity/Time m -2 Momentum p = mass x velocity Kg ms -1 F..

The units of fundamental physical quantities are called fundamental units. They are length, mass and time. These units can neither be derived from one another nor can be resolved into any other units. They are independent of one anothe..

The units of fundamental physical quantities are called fundamental units. They are length, mass and time. These units can neither be derived from one another nor can be resolved into any other units. They are independent of one another. Unitsh..

Quantity Derivation of the Quantity SI Unit Symbol Area Length square m 2 Volume Length cube m 3 Density Mass per unit volume kg m -3 Speed Distance travelled per unit time m S -1 ..

The value of any physical quantity is always expressed as its numerical value as well as a unit. One often hears the weight expressed as grams or kilograms; the distance as foot, yard or mile; the volume as litres or gallons. The use of a number of units cause confusion and comp..

Unit work is the amount of work done when a unit force displaces a body through unit distance in the direction of the force. In International System of units, the absolute unit of work is 'joule'. 1 joule = 1 newton x 1 met..

One unit is the electrical energy consumed by an electrical appliance of power 1 kW when used for 1 ho..

Since entropy change is expressed as heat divided by temperature, the units of entropy are calories per degree (expressed as entropy units eu) or joules per kelvin, JK - 1 (expressed as EU..