GENERAL KNOWLEDGE

Detailed explanation-1: -The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 x 10–34 when expressed in the unit J s, which is equal to kg m2 s–1, where the metre and the second are defined in terms of c and Cs.

Detailed explanation-2: -The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.

Detailed explanation-3: -The kilogram is the base unit of mass because electrical engineers in the late 19th century chose a particular set of practical electrical units. Their practical units were a success, and we are still using them today: ohm, volt, and ampere.

Detailed explanation-4: -A kilogram is the SI unit of mass and one of the 7 base units in the International System of Units (SI). It is the only SI unit with a prefix. The prefix “Kilo” is used for both the name and symbol of kilogram and is equal to 1000 or 103 grams.

Detailed explanation-5: -kilogram (kg), basic unit of mass in the metric system. A kilogram is very nearly equal (it was originally intended to be exactly equal) to the mass of 1, 000 cubic cm of water. The pound is defined as equal to 0.45359237 kg, exactly.